RU2491004C1 - Plum compote sterilisation method - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: invention is related to preservation industry. The plum compote sterilisation method envisages jars putting (after sealing) into the carrier ensuring mechanical air-tightness of the jars. One performs simultaneous staged heating of some preserves in baths filled with 60, 80 and 100°C water during 8, 8 and 25-30 minutes respectively and cooling of other preserves in the same baths filled with 80 and 60°C water during 8 and 8 minutes. One proceeds with cooling in another bath at water temperature equal to 40°C during 8 minutes.

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

1 ex

Description

The proposed method for the invention relates to the canning industry, and in particular to methods for sterilizing compote from plums in cans SKO 1-82-1000.

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

$$\frac{25-(\mathrm{twenty}-25)-25}{\mathrm{one\; hundred}°C}\cdot 188\mathrm{to}P\mathrm{but}$$

where 25 is the duration of the period of heating water to 100 ° C, min;

20-25 - the length of the period of its own sterilization at 100 ° C, min;

25 - the duration of the cooling period, min;

100 ° C - sterilization temperature, ° C;

118 - 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 a reduction in 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 skin; ensuring 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 of heat and water.

The specified technical result is achieved due to the fact that the cans after seaming are installed in a special carrier that provides mechanical tightness of the cans and are preheated in the first bath with water at a temperature of 60 ° C for 8 minutes, followed by transfer to the second and third baths with water, respectively 80 ° C for 8 min and 100 ° C for 25-30 min, followed by cooling in the second and first baths with water at 80 and 60 ° C for 8 and 8 min, respectively, and continued cooling in the fourth bath at a water temperature of 40 ° C for 8 min.

An example implementation of the method.

After sealing, the cans with compote are installed in a carrier that provides mechanical tightness (preventing caps from tearing off during the heat treatment) and placed in a hot water bath at 60 ° C for 8 minutes. After 8 minutes, the carrier with the cans is transferred to a bath of water at a temperature of 80 ° C for 8 minutes, then to a bath of water at a temperature of 100 ° C for 25-30 minutes. After this time, the cans are cooled in the same baths: in the second bath at a water temperature of 80 ° C for 8 min and in the first bath for 8 min at a water temperature of 60 ° C, in which the next batch of cans is simultaneously heated, with further continued cooling in the fourth bath at a water temperature of 40 ° C for 8 minutes

The use of stepwise cooling of compote in the same bathtubs where heating is also carried out, helps to simplify 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: three-stage heating of compote in water at temperatures of 60, 80 and 100 ° C, respectively, 8, 8 and 25-30 minutes, followed by three-stage cooling for 8, 8 and 8 minutes, and the processes of heating and cooling cans, in addition to the last stages of heating and cooling, they are carried out simultaneously 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. A collection of technological instructions for the production of canned food, t.2, M., 1977.

Claims (1)

A method of sterilizing compote from plums, characterized in that after seaming, the cans are installed in a carrier that provides mechanical tightness of the cans, and the canned foods are simultaneously stepped in water baths with temperatures of 60, 80 and 100 ° C for 8, 8 and 25-, respectively 30 min of some cans and cooling of others in the same bathtubs with water with temperatures of 80 and 60 ° C for 8 and 8 min, with continued cooling in another bath at a water temperature of 40 ° C for 8 min.