FIELD: food industry.
SUBSTANCE: method for quick freezing of vegetable semi-finished products consists of the mixture of fruits and vegetables weighing 400 g and packed airtightly under vacuum into the film, will be implemented by immersing the package with the product in a coolant consisting of 45% propylene glycol solution of 40 wt % and 11% aqueous NaCl solution of 60 wt % with the temperature of -30°C with the subsequent additional freezing in the refrigerating chamber at the temperature of -24°C. The invention provides the technology for quick freezing of fruit and vegetable semi-finished products having high quality indices at low energy consumption and shortened freezing duration.
EFFECT: coolant to be used has the reduced viscosity, which helps to reduce energy consumption while moving it through pipelines, and good heat transfer properties.
1 tbl, 3 ex
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