Cryogenic freezers can achieve temperatures as low as -196°C (-321°F), depending on the gas used.
Manufacturing of convenience food and ready meal components. The substrate can be seafood, vegetables, meat, potatoes, pasta or other free rolling products.
In the cryogenic batch freezers we can freeze such products as ready meals, meat, fish, vegetables and fruits, poultry.
Cryogenic tumblers are used to envelop a substrate with a sauce or another kind of coating. The end-product of the batch process is an IQF (individually quick frozen) added value product. Cryogenic coating is fast, flexible and efficient. The process can be fine-tuned to prevent breakage and to inhibit the production of fines. Due to special internal parts, the discharging of the tumbler is swift, and no segregation occurs (within 36 seconds). Thanks to specially designed nozzles and injection systems, the amount of coating can be up to 800 % in weight. Tumblers exist in nominal batch sizes of 50 to 800 kg (500 liter to 8800 liter).
Rotary drum freezers are best used for IQF freezing of free rolling, mostly small products. They are perfect for products consisting of separate pieces. Applications in the food industry are abundant: rotary drums freeze individual pieces (granules, crumps, cubes.. ) of fish and meat, pasta, vegetables and precooked dishes to IQF quality.
It involves the simultaneous mixing of a refrigerant such as liquid nitrogen (LIN) or liquid carbon dioxide (LCO2) and the product in a specially prepared unit. Product and cooling medium are loaded continuously at the highest entrance point of the drum. By the rotating movement, both are intensively mixed while, at the same time, sliding to the lower exit of the drum. The stirring movement and the mixing prevent products from clumping together. Special paddles can be built in to ensure this happens.
The crust process can be carried out in such equipment as batch freezers, linear tunnels, spiral tunnels, vertical tunnels.
For some subsequent processes like slicing or decorating, it is necessary to harden the surface by crust-freezing. Using low temperatures as low as -195,8°C, the process is very fast.
Cryogenic batch freezers use liquefied carbon dioxide (LCO2) or liquefied nitrogen (LIN) for discontinuous cooling and freezing. Controlled injection of the cryogenic gas lowers the temperature in the cabinet as the gas immediately evaporates. The latent heat of evaporation is the main source of cooling energy. Fans spread the gas in the cabinet in a controlled way and efficiently transfer the cold to the product’s surface. Cryogenic batch freezers are used for discontinuous cooling, freezing or crust-freezing for a wide range of products. Normally the operator loads the product onto trolleys equipped with wheels, before pushing them into the freezer. Applications can be found in the food industry, the pharmaceutical and metallurgical industry.
Catering companies supply the airline industry with quality fresh and frozen food. To ensure the integrity of the logistics’ cold chain, they have to use considerable amounts of CO2 dry ice. Dohmeyer designs and installs dry ice injection systems into food containers and vacuum insulated pipelines that supply liquid CO2 to the necessary dry ice pelletizers.
Precautions include proper ventilation, use of personal protective equipment (PPE), and training to handle liquefied gases safely.
They can be environmentally friendly due to their lower energy consumption, but the production of liquefied gases does have a carbon footprint.
Yes, cryogenic freezers can be integrated into continuous production lines for high efficiency.
Yes, they are often more energy-efficient than mechanical freezers because they don’t rely on compressors or refrigerant systems.
Certifications include GMP compliance, ISO standards, and adherence to FDA or EMA regulations.
Flash freezing is the rapid freezing of items to prevent ice crystal formation. Cryogenic freezing is a method used for flash freezing.
Products frozen cryogenically can have an extended shelf life, often several months to years, depending on the product type and storage conditions.
While cryogenic freezing doesn’t kill most bacteria or pathogens, it inhibits their growth by creating an environment unsuitable for survival.
Cryogenic freezers can cool products within minutes, depending on the product’s size and thermal properties.
Applications include preserving vaccines, storing biological samples, freezing cells, and supporting biopharmaceutical research.
Applications include freezing seafood, meat, bakery products, ready-to-eat meals, and preserving the freshness of fruits and vegetables.
Industries include food processing, pharmaceuticals, biotechnology, aerospace, and medical research.
Cryogenic freezers use liquefied gases for cooling, while mechanical freezers use refrigerants and compressors. Cryogenic systems achieve much lower temperatures more quickly.
It prevents large ice crystals from forming, preserving the texture, flavor, and nutritional value of food, as well as the integrity of pharmaceuticals and biological materials.
Cryogenic freezers work by exposing items to liquefied gases, such as liquid nitrogen or carbon dioxide, which absorb heat as they evaporate, rapidly cooling the items.
Benefits include rapid freezing, minimal ice crystal formation, better preservation of texture and quality, and reduced energy consumption compared to some traditional methods.
Liquid nitrogen is used as a coolant. It absorbs heat and evaporates, creating an ultra-cold environment for rapid freezing.
Liquid nitrogen (LN2) and carbon dioxide (CO2) are the most commonly used gases.
A cryogenic freezer is a device that uses extremely low temperatures, often achieved with liquefied gases like liquid nitrogen, to freeze items rapidly and efficiently.
Yes, cryogenic systems are effective for cooling components during manufacturing or testing.
Yes, they are often used for rapid chilling of beverages and liquid products.
Yes, immersion cryogenic freezers can quickly freeze liquids or semi-liquid products.
Yes, cryogenic gases are used for metal hardening and temperature control in industrial processes.
Yes, cryogenic freezing is ideal for IQF applications like fruits, vegetables, and small meats.
Food production, pharmaceuticals, electronics, aerospace, and metallurgy industries.
Rapid freezing, improved product quality, reduced dehydration, better texture, and smaller equipment footprint.
Yes, both LIN and LCO₂ are food-safe and widely used in the food industry.
Cryogenic freezing is significantly faster, often reducing freezing times by 50% or more.
Almost any food product, pharmaceuticals, metal components, and sensitive electronics can be cryogenically cooled or frozen.
Liquid carbon dioxide converts to dry ice at -78.5°C (-109.3°F).
Cryogenic cooling and freezing involve rapidly lowering the temperature of products using liquid nitrogen (LIN) or liquid carbon dioxide (LCO₂), which are extremely cold substances.
Liquid nitrogen (LIN) and liquid carbon dioxide (LCO₂) are the two most common gases used.
Liquid nitrogen has a temperature of -196°C (-321°F).
It works by directly exposing the product to cryogenic gases (LIN or LCO₂), causing rapid heat extraction and freezing.
Yes, faster freezing and fewer manual interventions streamline operations.
Many businesses notice improvements in throughput and quality within weeks.
Yes, cryogenic systems generally have lower maintenance costs compared to mechanical freezers.
Cryogenic systems use significantly less electricity since the cooling comes from LIN or LCO₂.
ROI depends on product type, production volume, and quality benefits. Many companies see ROI within 6–12 months.
Costs include LIN/LCO₂ consumption, equipment, and maintenance, balanced against savings in production time and quality improvement.
Cryogenic tunnels have a smaller footprint compared to mechanical freezers, often less than 10–20 meters in length.
Costs depend on local suppliers and consumption rates but are generally affordable for high-value production.
LIN consumption varies but typically ranges from 1–2 kg per kg of product depending on the application.
While the operational costs for cryogenics can be higher, the overall benefits, such as reduced freezing times and better product quality, often offset these costs.
Freezers must meet GMP standards, include HEPA filtration, and ensure contamination-free environments.
Challenges include initial investment, supply of liquefied gases, and integration into existing production lines.
Advantages include rapid freezing, preservation of texture, and prevention of dehydration and freezer burn.
Yes, closed systems and sterile environments prevent contamination of stored materials.
Validation includes IQ/OQ/PQ protocols, temperature mapping, and performance testing.
Advanced design features and sensors monitor and maintain uniform temperatures throughout the freezer.
They maintain ultra-low temperatures during the transport and storage of pharmaceuticals and biological materials.
Yes, it ensures stability and extends the usability of sensitive products.
It preserves tissues, scaffolds, and other materials used in regenerative medicine.
Yes, they are commonly used in blood banks and medical facilities for long-term storage.
Cryopreservation refers to preserving biological materials, often at cryogenic temperatures, while cryogenic freezing generally applies to rapid freezing techniques for various products.
Yes, it prevents degradation and maintains the stability of temperature-sensitive pharmaceuticals.
Documentation includes validation protocols, calibration records, maintenance logs, and temperature monitoring reports.
It provides reliable preservation methods for biological materials, enabling reproducibility and stability in experiments.
Yes, they are widely used for the long-term storage of stem cells in research and clinical applications.
Cryogenic freezing ensures the stability of biological samples, drugs, and vaccines throughout the trial process.
It preserves viral vectors, plasmids, and other gene therapy materials during production, storage, and transport.
Yes, they are specifically designed to maintain the integrity of sensitive samples such as DNA, RNA, and cells.
Cryogenic freezing is essential for preserving the viability and functionality of cells for research, therapy, and storage.
It aids in the preservation of biological samples, proteins, and enzymes, and ensures stability during research and development.
Yes, cryogenic freezing is used to preserve vaccines by maintaining their stability and efficacy at ultra-low temperatures.
Common products include vaccines, biological samples, cell cultures, and biopharmaceuticals.
Yes, by rapidly reducing temperatures, it minimizes the risk of microbial growth.
Controlled thawing in a refrigerated environment is recommended to maintain quality.
Cryogenic freezing may have higher operational costs due to gas consumption but lower maintenance and faster throughput.
Cryogenic freezing is often faster and can achieve lower temperatures than traditional IQF methods.
Yes, it can be seamlessly integrated with conveyors and automated systems.
It ensures long shelf life and preserves product quality during transit.
Yes, it is widely used for freezing meat and poultry to maintain quality and texture.
Yes, the rapid freezing process reduces the likelihood of freezer burn.
Materials that withstand extreme temperatures, such as high-density polyethylene (HDPE) and specially designed cryogenic films.
Yes, it is commonly used to preserve the quality and safety of ready-to-eat meals.
It minimally affects nutritional value compared to traditional freezing methods.
Bakery products are flash frozen to preserve freshness and texture, often right after baking or partially baking.
Yes, industrial cryogenic freezers are designed to handle large-scale production.
Yes, it is safe and does not alter the organic properties of the food.
Freezing capacity varies widely, from a few kilograms per hour in small units to several tons per hour in industrial systems.
Yes, it helps retain the natural flavors of food by reducing oxidative damage during freezing.
Seafood, meat, poultry, bakery goods, fruits, vegetables, and ready-to-eat meals are ideal for cryogenic freezing.
It preserves the natural texture by preventing large ice crystal formation.
By using ultra-low temperatures and rapid freezing, cryogenic technology minimizes ice crystal formation and cellular damage.
Dohmeyer’s cryogenic systems are highly reliable, precise, and customizable, ensuring consistent freezing and long-term preservation for sensitive biological materials.
Yes, it is the standard method for preserving stem cells in both research and therapeutic applications.
Liquid nitrogen provides a stable -196°C environment, ensuring the long-term viability of embryos and live cells.
Yes, Dohmeyer cryogenic freezers are ideal for preserving embryos, oocytes, and sperm for fertility treatments.
Dohmeyer systems offer precise temperature control and uniform freezing, critical for maintaining cell viability.
Embryos and live cells can be preserved for decades without losing viability.
Applications include stem cell preservation, fertility preservation, tissue engineering, and cellular therapies.
Cells are rapidly frozen to prevent ice crystal formation, preserving cellular structure and function.
Cryogenic freezing is used to preserve embryos at -196°C, maintaining their viability for in vitro fertilization (IVF) and research.
By maintaining precise temperatures, cryogenic systems prevent thermal fluctuations that can degrade mRNA integrity.
Dohmeyer offers highly reliable, customizable cryogenic solutions with advanced controls to meet the stringent requirements of mRNA freezing and storage.
Rapid freezing is critical, and cryogenic technology achieves the required temperatures within minutes.
Yes, Dohmeyer offers tailored cryogenic systems for bulk freezing and storage of mRNA-based products.
It provides reliable ultra-cold storage during shipping and ensures vaccines remain stable during long-distance transport.
Yes, Dohmeyer’s cryogenic solutions can be scaled for high-capacity production and distribution.
Cryogenic freezing overcomes issues of molecular instability, ensuring mRNA remains intact for transport and storage.
LIN provides the ultra-low temperatures necessary for freezing and long-term storage of mRNA vaccines and therapies.
Yes, Dohmeyer offers advanced cryogenic systems specifically designed for pharmaceutical freezing, cooling, and storage needs.
It maintains the structural integrity of the mRNA molecules, preventing degradation and ensuring efficacy.
mRNA-based products, such as vaccines, are highly temperature-sensitive and require storage at -70°C to -196°C to remain stable.
It enables the preservation of patient-specific treatments, such as cellular therapies and precision biologics.
Yes, it prevents enzyme degradation and preserves API efficacy during storage.
LIN is used for rapid cooling during production processes and for freezing and storing pharmaceutical products.
Cryogenic systems provide consistent ultra-low temperatures during transport, ensuring pharmaceutical integrity.
Yes, monoclonal antibodies (mAbs) are often stored cryogenically to prevent denaturation.
Yes, cryogenic storage ensures the integrity of clinical trial samples like blood, tissues, and drugs.
It preserves vaccines by preventing chemical degradation and microbial growth, ensuring long-term stability.
Many pharmaceutical products, like biologics and vaccines, are highly temperature-sensitive and require freezing at -80°C or lower to maintain efficacy.
It is used to preserve vaccines, enzymes, biological drugs, and temperature-sensitive pharmaceuticals during production, storage, and transportation.
Yes, Dohmeyer offers customized cryogenic freezers and liquid nitrogen-based storage solutions for life science applications.
Liquid nitrogen (LIN) is commonly used due to its ultra-low temperature of -196°C, which preserves biological samples without chemical alteration.
Cryogenic systems maintain the structural integrity of DNA, RNA, and proteins, ensuring accurate research results.
Absolutely. Cryogenic freezing can preserve biological materials for decades without loss of integrity.
Yes, cryogenic freezing is the standard for preserving stem cells in both research and medical therapies.
Rapid freezing minimizes ice crystal formation, which prevents mechanical damage to cellular structures.
Ultra-low temperatures of -80°C to -196°C are typically required, depending on the type of material.
Samples include tissues, blood, DNA, RNA, proteins, live cells, and embryos, as well as organ preservation for research and medical purposes.
It ensures the long-term viability and integrity of biological materials, preventing cellular damage and degradation.
Cryogenic technology is used for preservation, cooling, and freezing biological samples, tissues, live cells, and other sensitive materials at ultra-low temperatures.
Depending on the tunnel size, rates can range from 100 to over 1,000 kg/hour.
Yes, by minimizing moisture loss and preserving product weight.
The size depends on the tunnel, but typically products up to 300–500 mm in width can be handled.
Yes, cryogenic freezing is gentle and maintains product integrity.
The rapid freezing process locks in moisture before it can evaporate.
It supports both batch and continuous production systems.
Tunnel freezers, spiral freezers, batch freezers, and immersion freezers.
Yes, tunnels and spiral systems are designed to accommodate various throughput levels.
Yes, it ensures consistent freezing with minimal temperature variation.
Production can often be doubled due to the speed of freezing.
Yes, it preserves product integrity and safety without altering the composition.
Yes, cryogenic systems allow adjustments for conveyor speed, gas flow, and product exposure.
Yes, the process locks in the natural flavors without altering taste or aroma.
Yes, cryogenic freezers are ideal for high-capacity, large-batch freezing.
Meals can typically be frozen in 5 to 15 minutes, depending on size and content.
Yes, cryogenic freezing ensures that dairy-based sauces and delicate vegetables maintain their quality.
It halts microbial activity and maintains freshness, significantly extending shelf life.
By minimizing dehydration, meals reheat evenly and retain their original texture and flavor.
Yes, cryogenic tunnels can freeze meals in trays, bags, or sealed packaging.
Yes, it freezes each component (e.g., rice, protein, vegetables) uniformly without affecting their texture.
Pre-cooked meals are cooled and frozen quickly to maintain freshness, reducing bacterial growth.
Yes, it locks in the sauce quickly, preventing separation or texture changes during storage.
Cryogenic freezing preserves the texture, flavor, and overall quality of RTE meals by freezing them quickly.
Yes, IQF seafood portions like prawns, scallops, and fish fillets are ideal for cryogenic freezing.
It preserves the delicate texture, color, and safety of sushi-grade fish without damaging the structure.
Depending on size and type, seafood can be frozen in 3 to 10 minutes.
Yes, rapid freezing prevents significant moisture loss during thawing.
Yes, it can be used for fresh shellfish like lobster, crab, or clams to preserve texture and freshness.
Yes, the freezing process can quickly solidify the glaze, ensuring even coverage.
Yes, it locks in moisture, preventing shrinkage and dehydration in products like shrimp, scallops, and squid.
It reduces oxidation and maintains the natural color, freshness, and quality of fish.
It preserves the delicate structure, taste, and appearance of seafood by minimizing ice crystal damage.
Yes, whole fish, fillets, or IQF portions can all be cryogenically frozen quickly and uniformly.
Yes, rapid freezing slows bacterial growth and improves food safety during storage and transportation.
Yes, marinated, breaded, or pre-cooked poultry can be quickly frozen without losing coating or flavor.
It significantly reduces freezing times, allowing for faster production and throughput.
Poultry parts like wings, thighs, or breasts are individually quick-frozen, ensuring they don’t stick together.
Yes, it minimizes ice crystal formation, maintaining the structure, juiciness, and flavor of poultry.
Yes, cryogenic freezers can accommodate whole birds as well as portioned cuts.
By freezing meat quickly, it reduces moisture loss and maintains product weight, saving costs in storage and transportation.
Absolutely. It rapidly freezes marinated products without altering the seasoning or moisture content.
Poultry products are delicate and prone to freezer burn. Cryogenic freezing rapidly locks in moisture and prevents dehydration.
It freezes ground meat uniformly and quickly, preventing fat separation or discoloration.
Depending on size and weight, freezing times can range from 5 to 20 minutes, which is much faster than mechanical freezing.
Yes, cryogenic freezing is ideal for IQF (individually quick frozen) meats like diced, sliced, or minced meat.
Yes, it slows bacterial growth and enzymatic activity, extending the shelf life significantly.
Yes, cryogenic tunnels and spiral systems can accommodate large cuts, whole carcasses, or smaller portions.
By freezing quickly, the surface moisture freezes immediately, preventing dehydration and freezer burn.
Yes, it minimizes cellular damage caused by large ice crystals, keeping the meat tender and juicy.
Cryogenic freezing ensures rapid freezing, which preserves the natural texture, moisture, and flavor of the meat. It also minimizes ice crystal formation, reducing damage to muscle fibers.
No, it maintains the natural color since no oxidation occurs during freezing.
Yes, it ensures minimal cell damage, preserving meat’s tenderness.
Yes, it works well for products that require glazing, such as frozen seafood.
Yes, the rapid freezing minimizes ice crystal size, improving quality.
It can uniformly freeze products of any shape or size.
Yes, it significantly extends shelf life by slowing microbial activity.
No, cryogenic freezing locks in flavor due to minimal dehydration.
Yes, the quick process helps retain vitamins and minerals.
By freezing the product quickly, it reduces surface dehydration.
Rapid freezing minimizes ice crystal formation, preserving the natural texture.
Though non-flammable, cryogenic materials like liquid oxygen can enhance combustion. Ensure separation from combustible materials and maintain proper ventilation.
Insurance should include liability coverage for accidents, equipment breakdown coverage, and policies for worker safety and product loss.
Procedures include evacuation plans, first-aid training for exposure, monitoring for oxygen levels in confined areas, and access to fire suppression and spill containment tools.
Install proper venting systems, ensure adequate ventilation in workspaces, and use pressure-relief devices to prevent gas buildup.
Yes, regulations such as those from the FDA or EFSA ensure cryogenic methods used for freezing or storage comply with food safety and material handling standards.
Pharmaceutical cryogenic freezers must adhere to standards like GMP (Good Manufacturing Practices) and regulations from bodies like the FDA, EMA, and ICH for drug substance preservation.
Risks include asphyxiation from oxygen displacement, severe frostbite or burns from contact, and potential explosions if confined spaces are not vented.
Avoid direct contact with cryogenic materials by using insulated PPE and tools. Work in controlled environments and follow strict handling protocols.
PPE includes cryogenic gloves, face shields, safety goggles, insulated aprons, long sleeves, and closed-toe footwear.
Operators must complete training on the proper handling of cryogenic materials, including recognizing hazards (e.g., frostbite, asphyxiation), equipment operation, emergency procedures, and first aid for exposure incidents.
No, both gases are food-grade, and there is no risk of contamination if proper procedures are followed.
Cryogenic gases evaporate safely into the atmosphere when released in a ventilated area.
Yes, LIN and LCO₂ are approved for food use by global authorities like FDA and EFSA.
Yes, LIN is derived from the atmosphere, and CO₂ can be sourced as a byproduct from other industries, making it sustainable.
No, LIN and LCO₂ are clean, and they do not produce harmful emissions.
Gas leaks should trigger alarms from the gas detection system, and staff should follow safety protocols to ventilate the area immediately.
Yes, LCO₂ is safe when handled properly, but it also requires proper ventilation to avoid CO₂ buildup.
Gas detection systems can monitor oxygen levels to ensure safe working conditions.
LIN is non-toxic, but it can displace oxygen, creating asphyxiation hazards in poorly ventilated spaces.
Yes, regular checks are necessary to ensure safety and efficiency.
LIN and LCO₂ have minimal environmental impact as they are natural components of the atmosphere.
Proper ventilation, gas detectors, and personal protective equipment (PPE) like insulated gloves and goggles are essential.
No, cryogenic systems are quieter than mechanical freezers.
Yes, some suppliers offer rental or leasing options for short-term projects.
Look for food safety certifications (e.g., CE, FDA approval) and ISO standards for quality.
Most suppliers offer product trials to test system performance.
Yes, many cryogenic systems are modular and scalable.
Yes, reputable suppliers offer full service, spare parts, and ongoing support.
Look for reliability, cost-efficiency, and proximity for gas deliveries.
Most suppliers offer a 12–24 month warranty on parts and labor.
Operators are trained on safety, usage, maintenance, and troubleshooting.
Installation typically takes 1–2 weeks, depending on system size.
Determine your throughput, product type, space constraints, and freezing requirements.
Immersion bath freezers consist of a liquid nitrogen (LIN) bath, in which you can rapidly freeze products to very low temperatures by direct immersion in the cryogenic liquid at atmospheric pressure. Depending on the residence time in the cryogenic liquid, the products can be only crust frozen (by a short immersion) or completely frozen (down to -195,8°C). Many of these applications are in the food industry, where bulk, free rolling and small products are immersed directly into the bath of liquid nitrogen. Other applications use liquid nitrogen to make metals or plastics extremely brittle for subsequent cryofracture, deburring or grinding.
Common sensors include temperature probes (e.g., RTDs or thermocouples), pressure sensors, liquid level sensors, and oxygen level monitors.
Various products can be shaped in any dimension - 2D or 3D. Immediate and permanent imprinting of the pattern on the frozen product is our specialty. This can be done using special molds cooled with liquid nitrogen.
Innovations include advanced automation, AI-driven temperature controls, energy-efficient cooling methods, and hybrid systems combining cryogenics with mechanical cooling.
They utilize precise control systems with feedback loops, backup cooling systems, and insulation to maintain stable temperatures.
They range from small benchtop units (a few liters) to large industrial systems with capacities of thousands of liters.
Calibration involves using traceable temperature probes or sensors to ensure accuracy within regulatory standards, often performed regularly by certified technicians.
Energy consumption varies by type and size but is generally lower for liquid nitrogen-based systems compared to mechanical freezers due to efficient cooling cycles.
Common types include liquid nitrogen immersion freezers, liquid nitrogen vapor phase freezers, and mechanical cryogenic freezers.
Yes, they can be customized for storage capacity, temperature range, automation, and compatibility with specific materials or samples.
They use advanced vacuum insulation, multi-layered barriers, and tightly sealed compartments to minimize heat transfer.
Typically, cryogenic freezers are constructed from stainless steel or aluminum with high-performance insulation materials like vacuum panels or polyurethane foam.
Freezers are transported using specialized equipment and vehicles to ensure safety and prevent damage.
Startup times are typically short, as liquid nitrogen rapidly cools the system to operating temperatures.
Yes, with proper planning and adjustments to accommodate gas supply and ventilation.
Many models offer software for temperature monitoring, remote operation, and data logging.
Preventative measures include regular inspection of seals and fittings, and installing leak detection systems.
Consistency is achieved through proper calibration, regular maintenance, and using quality gas supplies.
Lead times can range from a few weeks to several months, depending on customization and supplier schedules.
Yes, they are designed for continuous operation in industrial and research settings.
Cryogenic freezers are generally quiet compared to mechanical freezers but may produce some noise from gas release or alarms.
Cleaning involves defrosting, using approved cleaning agents, and ensuring all surfaces are dry before reuse.
Common issues like temperature fluctuations or gas leaks can be addressed by checking seals, sensors, and gas supply lines.
Yes, as long as there is a reliable supply of liquid nitrogen and power.
Consumption rates vary by freezer size and application but are typically specified by the manufacturer.
Liquid nitrogen is supplied in tanks or dewars and is refilled by gas suppliers as needed.
Operating costs include energy consumption, gas supply, and maintenance, which can range from moderate to high depending on the scale of use.
Temperature is monitored using sensors and digital displays, with optional alarms and remote monitoring systems.
A well-maintained cryogenic freezer can last 10-20 years.
Regular maintenance, including inspections and cleaning, is typically recommended every six months, depending on usage.
Space requirements vary by model, but generally include room for the freezer, gas supply tanks, and adequate ventilation.
The installation process involves site preparation, electrical setup, gas supply connections, and calibration. It requires professionals to ensure compliance with safety and operational standards.
Continuous cryogenic tunnels typically offer better gas efficiency because they are designed for steady airflow and optimized freezing conditions.
Yes, Dohmeyer systems come with advanced gas monitoring and control systems, allowing operators to track and optimize consumption in real time.
LCO₂ is often used in smaller applications or where a lower temperature drop is needed. While LIN provides ultra-low temperatures (-196°C), LCO₂ offers effective cooling with slightly lower consumption rates.
Yes, poor insulation of pipelines, storage tanks, and freezer chambers can lead to significant gas losses through boil-off.
Yes, thicker or larger products require more time and energy to freeze, leading to increased gas consumption.
Defrosting cycles are necessary to remove ice buildup, but they can temporarily increase gas usage. Efficient scheduling and proper maintenance reduce unnecessary defrosting.
Multiply the gas consumption per kilogram of product (e.g., 1.5 kg LIN/kg product) by the cost per kilogram of LIN or LCO₂ and the daily production volume.
Depending on the throughput and product type, a 10m cryogenic tunnel can consume between 150 to 400 kg of LIN per hour.
Yes, Dohmeyer systems are designed for maximum gas efficiency through advanced airflow optimization, insulated chambers, and precise gas control mechanisms.
Cryogenic freezers use significantly less electricity than mechanical freezers because the cooling energy comes from the cryogenic gas itself. However, gas costs must be factored into the overall consumption.
For IQF products, typical LIN consumption is about 1.2 to 1.5 kg of LIN per kg of product, depending on the product size and configuration.
Depending on the product and system efficiency, freezing 1 ton of product typically requires 1,000 to 2,000 kg of liquid nitrogen (LIN) or 300 to 600 kg of LCO₂.
Yes, higher moisture content or denser products require more cooling energy, leading to higher gas consumption. For example, freezing seafood requires more LIN than lighter bakery products.
Warmer products require more energy to cool and freeze, leading to higher gas consumption. Pre-cooling products can significantly reduce LIN/LCO₂ usage.
The main factors include:- Product weight and heat load- Freezing time required- System efficiency and insulation- Product entry temperature- Tunnel design and airflow optimization
Gas consumption depends on:
Cryogenic consumption varies depending on the freezer type, product size, temperature, and production throughput. On average, it ranges between 1 to 2 kg of liquid nitrogen (LIN) per kg of product frozen.
Absolutely, it preserves the texture and structure of plant-based proteins and meals.
Regularly inspect flow regulators, tanks, and pipelines for leaks or obstructions.
Check gas flow, conveyor speed, and product loading for consistency.
Increase exposure time, adjust conveyor speed, or verify gas flow rates.
Insulate pipelines and storage tanks and ensure gas-tight connections.
Adjust the conveyor spacing or use IQF techniques for individual freezing.
Clean the conveyor belts regularly and inspect for wear and tear.
Ensure proper airflow distribution and adjust belt speed for uniform freezing.
Optimize the tunnel settings, airflow, and conveyor speed to minimize waste.
Follow the troubleshooting guide, and contact the supplier for immediate assistance.
It is used for sterilization, preservation, and ensuring temperature consistency in sensitive applications.
Yes, it freezes high-fat products like butter and cream without affecting the texture.
Perform a defrosting cycle and ensure proper airflow to reduce ice formation.
Yes, it ensures minimal quality loss while adhering to organic standards.
It quickly freezes the filling without compromising the structure or texture.
Yes, it is widely used for vaccines, biological samples, and sensitive drugs that require precise freezing.
Yes, it maintains product quality, extends shelf life, and reduces bacterial activity.
It locks in moisture and flavor, preserving the tenderness and freshness of meat.
Yes, it is effective for ice cream, cheese, yogurt, and other dairy products by reducing crystallization.
Yes, it works well for bread, pastries, and cakes, preventing sogginess and maintaining structure.
Yes, cryogenic systems are excellent for preserving texture and quality of ready-to-eat meals.
It rapidly freezes seafood, minimizing dehydration, and preserving taste, texture, and appearance.
Yes, modern systems include digital controls for precise monitoring.
Products move on a conveyor belt through the tunnel.
No, LIN and LCO₂ are non-flammable.
A defrost cycle removes ice buildup and is typically needed after 20 hours of operation.
Routine defrosting, filter replacement, and preventive maintenance checks are necessary.
Ventilation is essential to prevent gas accumulation and ensure safe operation.
Proper ventilation, gas detection systems, and operator safety training are required.
Power requirements are minimal compared to mechanical systems.
It ranges from 6 to 12 meters depending on production capacity.
A supplier typically installs and commissions the equipment.
Yes, by reducing dehydration, Dohmeyer systems preserve product weight and improve overall yields.
Dohmeyer stands out for its engineering expertise, innovation, reliability, and customer-focused approach, delivering tailored solutions that maximize efficiency and product quality.
Dohmeyer systems are modular and scalable, allowing for easy upgrades to meet growing production demands.
Yes, Dohmeyer systems comply with CE, FDA, and ISO standards, ensuring safety, hygiene, and performance in all markets.
Many customers experience ROI within 6–12 months due to increased production throughput, reduced waste, and improved product quality.
Yes, Dohmeyer offers trial runs and product testing to ensure the solution meets your specific needs before purchase.
Dohmeyer equipment features optimized airflow and advanced controls that ensure even and consistent freezing, regardless of product size or shape.
Dohmeyer’s cryogenic tunnels and spirals operate at high speeds, ensuring freezing keeps pace with the most demanding production environments.
Yes, Dohmeyer offers a range of systems, from compact solutions for small operations to high-capacity tunnels and spirals for large-scale producers.
Yes, Dohmeyer systems allow for adjustable settings to freeze multiple product types efficiently without compromising quality.
Dohmeyer equipment uses sustainable cryogenic gases like LIN and CO₂, which have minimal environmental impact and comply with global food safety standards.
Dohmeyer systems are designed for seamless integration into existing production lines with minimal disruption.
Dohmeyer’s spiral freezers offer high-capacity freezing in a compact design, with uniform airflow that ensures consistent product freezing.
Dohmeyer systems are designed for low maintenance and include easy access for preventative checks, which are typically required twice per year for 24/7 production environments.
Dohmeyer provides comprehensive after-sales support, including operator training, spare parts supply, remote troubleshooting, and on-site service when needed.
Dohmeyer equipment is engineered for optimal gas efficiency, reducing LIN/LCO₂ consumption while maintaining high-quality freezing performance.
Dohmeyer equipment is designed with built-in safety systems such as gas leak detection, ventilation controls, and emergency stop features.
Dohmeyer’s systems ensure gentle product handling and even freezing, preserving texture, shape, and quality for delicate items.
Yes, Dohmeyer’s advanced airflow systems ensure products freeze individually, making them perfect for IQF applications like diced vegetables, seafood, and meat.
Yes, Dohmeyer systems feature advanced digital controls that allow precise monitoring and adjustments for temperature, belt speed, and gas flow.
Yes, Dohmeyer cryogenic freezers have a compact footprint while offering high-capacity production capabilities, making them ideal for facilities with limited space.
Dohmeyer cryogenic freezers use minimal electrical energy, relying on liquid nitrogen or CO₂ for cooling, making them energy-efficient compared to mechanical freezers.
Dohmeyer’s cryogenic systems freeze products faster, doubling or tripling throughput compared to traditional freezing systems.
Dohmeyer systems are built with high-quality stainless steel, advanced controls, and durable components, ensuring long-term reliability and reduced maintenance.
Yes, Dohmeyer offers tailored solutions based on your production requirements, space limitations, and product specifications.
Dohmeyer cryogenic systems rapidly freeze products, minimizing ice crystal formation, preventing dehydration, and maintaining product weight, texture, and flavor.
Dohmeyer equipment is designed for maximum gas efficiency, ensuring minimal LIN/LCO₂ consumption while delivering superior freezing results.
Dohmeyer is a leading global manufacturer of cryogenic freezers and cooling systems, known for delivering cutting-edge technology, reliability, and tailored solutions for various industries.
Dohmeyer offers tunnel freezers, spiral freezers, immersion freezers, cabinet freezers, and custom-built systems to meet diverse production requirements.
Dohmeyer provides solutions for food processing, pharmaceuticals, aerospace, electronics, and metal industries, ensuring precise and efficient cryogenic freezing or cooling.
Didn’t find what you were looking for?
Contact Us
