RU2463894C2 - Apple compote production method - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: invention relates to food industry. According to the proposed method after preliminary preparation and packing of fruits in jars one performs pouring with 85°C water for 2-3 minutes, proceeds with repetitive pouring with 98°C water for 2-3 minutes, then the jar is poured with 98°C syrup. The jar is sealed, put into the carrier. Then the jar undergoes sterilisation in 100°C water during 30 minutes with subsequent three-stage cooling in 80, 60 and 40°C water during 8, 8 and 12 minutes respectively. During the whole process the jar is turned upside down.

EFFECT: method ensures the process duration reduction and the end product quality enhancement.

1 ex

Description

The proposed method of the invention relates to the canning industry and can be used in the production of apple compote in cans SKO 1-82-3000.

Sources, which were searched by this method, showed that the prototype of the proposed method is a method of sterilizing compotes [1], the essence of which is that the rolled cans are placed in a sterilization apparatus (autoclave) and subjected to heat treatment according to the regime

where 30 is the duration of heating the water in the autoclave to 100 ° C, min; 50 - the duration of their own sterilization, min; 30 - cooling time, min; 118 - back pressure in the autoclave, kPa; 100 - sterilization temperature, ° C.

The disadvantages of this method are:

- long duration of the process;

- high consumption of thermal energy.

The aim of the proposed method is to reduce the duration of the process and save heat energy.

The specified technical result is achieved due to the fact that according to the proposed method, the fruits after preliminary preparation are packaged in jars and filled with water at a temperature of 85 ° C for 2-3 minutes, followed by the replacement of this water with water at a temperature of 98 ° C for 2-3 minutes, after which the water is replaced with syrup with a temperature of 98 ° C, then the cans are rolled up, installed in a special carrier that provides mechanical tightness of the cans (preventing the caps from breaking off during heat treatment), and they are sterilized in a 100 ° C water bath for 30 min, followed by cooling in water with a temperature of 80 ° C for 8 min, then in bathtubs with a water temperature of 60 ° C for 8 min and 40 ° C for 12 min, while during the heat treatment the cans are rotated from the bottom on the lid with a frequency of 0.33 s ^-1 .

An example implementation of the method.

Before pouring syrup, pour hot water at a temperature of 85 ° C into the jar with the fruits placed for 3 minutes, then replace this water with water at a temperature of 98 ° C for 3 minutes, after which the water will be replaced with syrup at a temperature of 98 ° C, cans rolled up, installed in a carrier that provides mechanical tightness (prevention of tearing of covers during the heat treatment) and placed in a bath with hot water at a temperature of 100 ° C for 30 minutes. After this time, the cans are cooled in a bath with water at a temperature of 80 ° C for 8 minutes, followed by continued cooling in baths with water at a temperature of 60 ° C for 8 minutes and 40 ° C for 12 minutes. Moreover, in the process of heat treatment, the cans rotate from the bottom to the lid with a frequency of 0.33 s ^-1 .

Preheating the fruits in steps of water with temperatures of 85 and 98 ° C provides an increase in the initial temperature of the compote and allows pouring syrup with a temperature of 98 ° C into cans, which significantly reduces the ineffective heat loss for cooling the syrup from 100 ° C (syrup cooking temperature) to the temperature pouring into jars, because according to the current technological instructions, the temperature of the syrup during pouring should be 80-85 ° С, which significantly increases the temperature of the product before sterilization.

The salient features of the proposed method are: two-stage preliminary heating of the fruits in jars with water at temperatures of 85 and 98 ° C for 2-3 minutes, respectively, followed by sterilization in water at a temperature of 100 ° C for 30 minutes, followed by three-stage cooling in water with temperatures of 80 , 60, and 40 ° C, respectively, 8, 8 and 12 minutes.

This mode provides a reduction in the duration of the process and saves heat energy.

Literature

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

Claims (1)

Method for the production of apple compote, characterized in that the fruits after filling in cans are filled with water at a temperature of 85 ° C for 2-3 minutes, re-filled for 2-3 minutes with water at a temperature of 98 ° C, after which the water is replaced with syrup with a temperature of 98 ° C, the cans are rolled up, installed in a carrier that provides mechanical tightness and sterilized in water at a temperature of 100 ° C for 30 min, then cooled in water at a temperature of 80 ° C for 8 min, then in bathtubs with a water temperature of 60 ° C for 8 min and 40 ° C for 12 min, while in during the heat treatment, the cans are rotated from the bottom to the lid with a frequency of 0.33 s ^-1 .