Similarly, technologies have been developed for the vacuum cooling of solids which originally contain humidity or which can be sprayed with water before the cooling phase. For instance, we can mention the cooling processes of fresh vegetables and of small size fruits.

On this subject, it is important to underline the adoption of ejectors for "flash effect" cooling (instant vacuum evaporation) of some corrosive liquids and some solutions where the solute is precipitated in consequence of the cooling action; in such cases, the use of conventional heat exchangers would be expensive and hardly practicable.