RU2490986C1 - Pear and quince compote sterilisation method - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: invention is related to preservation industry. The pear and quince 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 jars in baths filled with 60, 80 and 100°C water during 4, 4 and 20 minutes respectively and cooling of other jars in the same baths filled with 80 and 60°C water during 5 and 5 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 invention relates to the canning industry, and in particular to methods of sterilizing compote from pears and quinces in cans SKO 1-82-350.

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

$$\frac{\mathrm{twenty}-\left(\mathrm{fifteen}-\mathrm{twenty}\right)-\mathrm{twenty}}{\mathrm{one\; hundred}°C}\cdot 118\mathrm{to}P\mathrm{but}$$

where 20 is the duration of the period of heating water to 100 ° C, min;

(15-20) - the length of the period of own sterilization at 100 ° C, min;

20 - 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: reducing the duration of the process; preservation of biologically active components of the raw materials used; reduce the number of boiled fruits; simplification of the process and the design of the apparatus for its implementation, saving heat energy and water, as well as reducing costs and increasing the competitiveness of finished products.

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 4 min, followed by transfer to the second and third baths with water temperature respectively 80 ° C for 4 minutes, and 100 ° C for 20 minutes, followed by cooling in the second and first baths with water at temperatures of 80 and 60 ° C for 5 and 5 minutes, respectively, and continued cooling in the fourth not 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 heat treatment) and placed in a hot water bath at 60 ° C for 4 minutes. After 4 minutes, the carrier with the jars is transferred to a bath with water at a temperature of 80 ° C for 4 minutes, then to a bath with water at a temperature of 100 ° C for 20 minutes. After this time, the cans are cooled in the same baths: in the second bath at a water temperature of 80 ° C for 5 min and in the first bath for 5 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 that have already been heat treated by the banks cooled in the same bathtubs. 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 for 4, 4 and 20 minutes, respectively, followed by three-stage cooling for 5, 5, and 8 minutes, and the can heating and cooling processes, except The last stages of heating and cooling are carried out simultaneously in the same bathtubs.

This mode provides significant savings of thermal energy, water, reducing the duration of the process 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 sterilizing compote from pears and quinces, characterized in that, after seaming, the cans are installed in a carrier providing mechanical tightness of the cans, and stepwise heating is carried out simultaneously in baths with water at temperatures of 60, 80 and 100 ° C for 4, 4 and 20, respectively min of some cans and cooling of others in the same bathtubs with water with temperatures of 80 and 60 ° C for 5 and 5 min with continued cooling in another bath at a water temperature of 40 ° C for 8 min.