RU2502443C1 - 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 three-stage heating of jars with compote in 60, 80 and 100°C water for 5, 5 and 20 minutes respectively with subsequent three-stage cooling in 80, 60 and 40°C water during 5, 5 and 8 minutes, respectively. Heating and cooling are performed at a water temperature equal to 60 and 80°C in the same baths.

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

Description

The proposed method relates to the canning industry, and in particular to methods of sterilizing compote from pears and quinces 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 pears and quinces" in an autoclave [1] according to the mode

$$\frac{\mathrm{twenty}-(25-\mathrm{thirty})-\mathrm{twenty}}{{\mathrm{one\; hundred}}^{\circ }C}\cdot 118\mathrm{to}P\mathrm{but}$$

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

(25-30) - the length of the period of its own sterilization at 100 ° C, min;

20 - the duration of the cooling period, min;

100 ° С - sterilization temperature, ° С;

118 - back pressure in the autoclave, kPa.

The disadvantages of this method are:

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; simplifying the process of implementing the method and 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 5 minutes, followed by transfer to the second and third baths with water with a temperature of 80 ° C, respectively, for 5 min and 100 ° C for 20 min, followed by cooling in the second and first baths with water at temperatures of 80 and 60 ° C for 5 and 5 min, respectively, and continued cooling in the fourth bath at a water temperature of 40 ° C for 8 minutes

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 5 minutes. After 5 minutes, the carrier with the jars is transferred to a bath with water at a temperature of 80 ° C for 5 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 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, 5, 5 and 20 minutes, followed by three-stage cooling for 5, 5 and 8 minutes, while the cans 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 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., 1997.

Claims (1)

A method of sterilizing stewed fruit 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 5, 5 and 20 minutes, respectively some cans and cooling others in the same bathtubs with water at temperatures of 80 and 60 ° C for 5 and 5 minutes with continued cooling in another bath at a water temperature of 40 ° C for 8 min.