Autovaporisation

Autovaporisation is the operation by which the heat required to generate steam is provided by the system itself and not by an external source

Any evaporation requires a certain amount of heat that is generally provided by an external source (ie. : hotplate ...)

In the case of D.I.C., the evaporation operation of a portion of volatile molecules (water ...) is of a duration so short that the quantity of heat supplied from outside the system is negligible or zero

The heat required for evaporation is simultaneously provided by the rest of the system that sees its temperature drop

Instant cooling