Embrittlement by exposure to cryogenic temperatures.

Both organic and inorganic materials can become brittle when ultra cooled to very low temperatures. Subsequent application of mechanical force (crushing or flexing) can easily break them down into smaller pieces. Often, complex substrates can also be separated into their constituent components.

The vacuum insulated snow horn, is a high efficient device making in situ dry ice snow at -78°C  / -109 F

Continues Freezer for particles such as tyre chips.

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.