METHOD FOR MAKING JAM FROM GRAPES Russian patent published in 2022 - IPC A23L3/04 

FIELD: food industry.

SUBSTANCE: invention relates to the food industry, namely to the method of producing jam from grapes. The prepared berries are placed in an ultra-high frequency pulsed electromagnetic field for 15-20 seconds, after which they are sent to cooking, which is carried out in two stages with a 15-minute boiling in each stage and subsequent cooling of the mass for 10 minutes by increasing the residual pressure in a vacuum apparatus with further exposure to equalize the concentration of sugar in fruits and syrup. Next, the jam is packaged in prepared jars, subjected to microwave heating for 1.0 minutes, sealed and sterilized according to a three-level high-temperature accelerated mode: .

EFFECT: invention makes it possible to improve the quality of the finished product and shorten the duration of the technological cycle, as well as increase the vitamin C content in the finished product by 20%.

1 cl, 1 ex