RU2503381C1 - Method for production of wild strawberry compote - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: invention is related to preservation industry. The method involves preliminarily heating of wild strawberries with hot water in jars. Then water is replaced with 95°C syrup. Then the jars are tightly closed and subjected to staged heating in 75 and 85°C water for 5 and 30 minutes respectively with subsequent cooling in 75°C water during 5 minutes in 20-25°C atmospheric air flow at a rate of 5-6 m/sec during 12 minutes. Heating and cooling are performed in the same bath at a temperature of 75°C.

EFFECT: method ensures saving heat energy and water, the process duration reduction and the ready product quality enhancement.

Description

The proposed method for the invention relates to the canning industry, and in particular to methods for the production of strawberry compote in cans SKO 1-82-500.

Sources, which were searched by this method, showed that the prototype of the proposed method is a method of sterilizing canned food "Compote of strawberries" in an autoclave [1] according to the mode

where 20 is the duration of the period of heating water to 85 ° C, min;

25 - the length of the period of its own sterilization at 85 ° C, min;

20 - the duration of the cooling period, min;

85 ° С - sterilization temperature, ° С;

88 - back pressure in the autoclave, kPa.

The main disadvantages of this method are:

- long duration of the process of heat treatment of the product;

- uneven heat treatment of the product in banks;

- high consumption of thermal energy and water.

The technical result of the invention is aimed at creating a method for the production of compote, contributing to: reducing the duration of the process; preservation of biologically active components of the raw materials used; reducing the number of boiled fruits and fruits with cracked peels; ensuring the simultaneous heating and cooling of cans with canned goods in the same bathtubs and thereby contributing to the simplification of the process of heat treatment and the design of the apparatus for heat sterilization, by reducing its overall dimensions and metal consumption and significant savings in heat and water.

The specified technical result is achieved due to the fact that according to the proposed method, berries packaged in cans for 2-3 minutes are poured with hot water at a temperature of 85 ° C, then this water is replaced with syrup with a temperature of 95 ° C, the cans are rolled up, installed in a carrier that provides mechanical tightness of the cans, and subjected to preheating in the first bath with water at a temperature of 75 ° C for 5 min, followed by transfer to a second bath with water at a temperature of 85 ° C for 30 min, followed by cooling in the first bath with water a temperature of 75 ° C for 5 min and continued cooling in a stream of atmospheric air with a temperature of 20-25 ° C and a speed of 5-6 m / s for 12 min.

An example implementation of the method.

Jars with pre-packed berries are poured with hot water at a temperature of 85 ° C for 2-3 minutes, then this water is replaced with syrup with a temperature of 95 ° C, then the cans are rolled up, placed in a carrier that provides mechanical tightness of the cans, and placed in a hot water bath with a temperature 75 ° C for 5 minutes After 5 minutes, the carrier with cans is transferred to a water bath at a temperature of 85 ° C for 30 minutes. After this time, the cans are cooled in the first bath for 5 min at a water temperature of 75 ° C, in which the next batch of cans is simultaneously heated, with further cooling in the stream of atmospheric air with a temperature of 20-25 ° C and a speed of 5-6 m / s for 12 minutes

The use of stepwise cooling of the compote in the same bath where heating is also carried out, simplifies the heat treatment process and the design of the sterilization apparatus, provides significant savings in heat energy and water, since with this design heat treatment is used to heat canned food in the first and second baths the heat given off by banks cooled in the same baths that have already undergone heat treatment. And water for cooling is consumed only in the last bath.

Salient features of the proposed method are: two-stage heating of compote in water at temperatures of 75 and 85 ° C for 5 and 30 minutes, respectively, followed by two-stage cooling for 5 and 12 minutes, while the processes of heating and cooling cans, in addition to the last stages of heating and cooling, are carried out at the same time in the same bathtubs.

This mode provides significant savings in thermal energy, water, reducing the process time and thereby improving the quality of the finished product.

Literature

1. Collection of technological instructions for the production of canned food, t.2, M., 1977

Claims (1)

A method of producing compote from strawberries, characterized in that the berries, after preliminary preparation and packaging in cans, are poured for 2-3 minutes with hot water at a temperature of 85 ° C, after which the water is replaced with syrup at a temperature of 95 ° C, then the cans are rolled up, installed in a carrier providing mechanical tightness of the cans, and is subjected to stepwise heating in baths with water at temperatures of 75 and 85 ° C for 5 and 30 minutes, respectively, followed by cooling in the same bath with water at 75 ° C for 5 min with continued cooling eniya in air stream temperature of 20-25 ° C and a speed of 5-6 m / s for 12 min.