| 摘要 |
PURPOSE:Cups containing thermally coagulable food such as custard pudding are spread in a tightly sealable tank and heated with steam at a constant pressure exceeding a little the saturated vapor pressure to make the titled food product free from bubbles in a shoft time economically. CONSTITUTION:For example, when custard pudding is made, a plurality of cups containing a mix of egg, milk and other flavors are spread on trays 24 in the tank 10 and the trays are held on the frames 24 of each bed, then the cover 11 is closed. At the beginning, the drain pipe 27 is opened, then steam is fed from the vapor feeding deaeratot 12, and air is introduced through pressure valve 30. When the pressure and temperature reach a prescribed level, heat treatment is effected for about 20min. After the treatment, cooling water 16 is introduced, while the pressure is kept with the pressure controller 29, to flow from the shower pipe 19 through the guide 24' of the trays 24 until overflowing to cool the trays. At this time, plates 23 are designed not to make water come into cups. |
