The invention relates to a method of producing a plurality of portions of a precooked
food wherein the food is initially cooked at temperatures above 80 C. and
prepared, the food is then cooled in a cooling phase within a maximum time of 120
min passing through the temperature range of 55 C. to 8 C. to a final
temperature in the range of 8 C. to 0 C., and stored for a few days
at the final temperature. The food is poured into an agitator vessel (22)
during the cooling phase wherein the food is simultaneously thoroughly mixed and
cooled during the cooling phase by an agitator (01, 26) constructed as a
heat exchanger according to the invention.