For some products, cryogenic grinding is necessary to ensure the highest possible product quality. Examples of this are sensitive APIs in the pharmaceutical industry or spices, whose aroma and flavour are better preserved this way. The material to be ground is first embrittled by cooling, usually with liquid nitrogen, and then ground.

Hosokawa Alpine offers a cryogenic grinding system with the Contraplex CW II pin mill and the Pharma Cryogenic Feeder PCF. This video explains the functional principle of the plant.