METHOD OF PRODUCING CANNED STERILIZED BUTTER OF SMALL-SIZED PACKAGE Russian patent published in 2003 - IPC

FIELD: milk industry. SUBSTANCE: method involves fat normalizing of high-fat cream produced from fresh milk at milk plant; packing cream in aluminum stamped enamel-lined or sterlicon cans, as well as in tubes of soft film package; providing vacuum sealing and sterilization, followed with stepped cooling initially from temperature of from 120 C to 90 C at cooling rate of 0.5 C/min, then from temperature of 90 C to 30 C at cooling rate of 4-5 C/min, and finally in cooling chamber to temperature of 8-15 C at cooling rate of 0.2-0.4 C/min; holding for 12 hours. Aluminum alloy cans of 129 g net weight are sterilized for 20 min, cans of 100 g net weight and soft film tubes of 15-30 mm diameter are sterilized for 10 min, and soft film tubes of 50-mm diameter and sterlicon cans of 100 g net weight for 15 min. EFFECT: improved quality of product and increased storage life. 2 cl, 1 ex