RU2363356C1 - Sterilisation method of bush cherry compote - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: method includes closure of tins with compote and putting it on the carrier. After that the tins are exposed to heating in water of temperature of 70°C during 5 minutes with following transfer it to the water of temperature of 90°C during 20 minutes. Then the tins are cooled down in air speed of 7-8 m/s during 20 minutes. During heat treatment, tins are turned upside down at a frequency of 0.166 c^-1.

EFFECT: reduction of sterilisation duration and quality improvement of finished products.

Description

The proposed method for the invention relates to the canning industry and it can be used for sterilization of cherry compote in cans 1-82-1000.

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

where 10 is the duration of the period of heating water to 90 ° C, min;

20 - the length of the period of its own sterilization at 90 ° C, min;

20 - the duration of the cooling period, min;

88 - back pressure in the autoclave, kPa.

The disadvantages of this method are:

- long duration of the process;

- uneven heat treatment of the product;

- high consumption of thermal energy and water;

- the frequency of the technological cycle.

The aim of the proposed method is to save thermal energy, water, reducing the duration of the process and ensuring the continuity of the process of thermal sterilization.

This goal 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 a bath with water at a temperature of 70 ° C for 5 minutes, followed by transfer to a bath with water at a temperature of 90 ° C for 20 minutes, followed by cooling in the stream of atmospheric air at its speed of 7 ÷ 8 m / s for 20 minutes and during the heat treatment, the cans rotate from the bottom to the lid with a frequency of 0.166 s ^-1 .

An example implementation of the method.

After sealing, the cans with compote are installed in a carrier that provides mechanical tightness (preventing caps from breaking off during the heat treatment), and placed in a hot water bath at 70 ° C for 5 minutes. After 5 minutes, the carrier with the cans is transferred to a water bath at a temperature of 90 ° C for 20 minutes. After this time, the banks are cooled in a stream of atmospheric air at a speed of 7-8 m / s for 20 minutes. In this case, in the process of heat treatment, the banks rotate from the bottom to the lid with a frequency of 0.166 s ^-1 .

Salient features of the proposed method are three-stage heating of compote in water at temperatures of 70 and 90 ° C for 5 and 20 minutes, respectively, followed by cooling in a stream of atmospheric air at a speed of 7 ÷ 8 m / s for 20 minutes.

The total duration of the sterilization process according to the proposed method is 45 minutes, which is 5 minutes less compared to the prototype.

This mode provides a reduction in the duration of the process and thereby improving the quality of the finished product, saving heat energy and water, as well as the continuity of the process.

Literature

1. A collection of technological instructions for the production of canned food. V.2, M .: Food industry. 1977.

Claims (1)

A method of sterilizing cherry compote, characterized in that after seaming, the cans are installed in a carrier providing mechanical tightness of the cans and heated in water at a temperature of 70 ° C for 5 minutes, followed by transfer to water at a temperature of 90 ° C for 20 minutes and then cooled in the air stream at its speed of 7-8 m / s for 20 minutes, while in the process of heat treatment the banks are rotated from the bottom to the lid with a frequency of 0.166 s ^-1 .