Patent ID: 6995341

Claim:
Apparatus for the heat treatment of substances, in particular foods, having a cooking chamber ( 2 ) surrounded by a housing ( 1 ), a fan chamber ( 4 ) which is separated from the cooking chamber ( 2 ) by a separation sheet ( 3 ) but is flow-connected to it and has a circulation fan ( 5 ), a device for generating a vaporous treatment medium in the cooking chamber ( 2 ), a condensation device ( 16 ) for condensing excess vapour and having shut-off devices ( 20 ) in all lines leading from the cooking chamber ( 2 ) to the outside, characterized in that the condensation device ( 16 , 23 ) is constructed as a mixed-condensation device starting from the pressure region ( 13 ) of the circulation fan ( 5 ) extending into the cooking chamber ( 2 ).