METHOD FOR VACUUM FREEZING OF CAULIFLOWER Russian patent published in 2024 - IPC A23B4/06 F25D13/00 

FIELD: food industry.

SUBSTANCE: invention relates to food industry, namely to production of frozen cauliflower. Method for vacuum freezing of cauliflower, characterized by the fact that a product with height of 40 mm is frozen in a vacuum-freezing chamber, wherein after 50 minutes, when temperature on the product surface reaches cryoscopic – minus 1.5 °C, a vacuum pump is turned on, which reduces the pressure in the chamber from atmospheric 101 kPa to 10 Pa at rate of 10 m³/h, and an ultrasonic generator with a radiation frequency of 60 kHz, which is turned off after 20 minutes when the temperature in the product reaches minus 20 °C, and freezing is carried out until the temperature in the product reaches -40 °C for 25 min.

EFFECT: invention makes it possible to reduce duration of product freezing, to reduce deformation and destruction of internal structure of cauliflower.

1 cl, 1 tbl, 4 ex