Beer sterilization method

Abstract

A beer sterilization method includes the steps that a bottle body is filled with beer, and a bottle mouth is closed; microwaves are used for sterilizing the beer contained in the bottle body in a filled mode. The sterilization method is low in temperature, environmentally friendly, economical, safe and stable, saves energy and affects the beer mouthfeel little, the production process is low in disinfection cost and small in management difficulty, and secondary pollution of bacteria is avoided.

Description

technical field [0001] The invention relates to the technical field of beer production, and in particular to a beer sterilization method. Background technique [0002] In the prior art, the sterilization method used for beer is generally heat sterilization. Among them, the first method is to sterilize at a temperature of 62-63°C for about 10 minutes after bottling and then cool it down, and the second method is to use a temperature above 72°C before filling. After 30 seconds of sterilization (instantaneous sterilization), it is cooled immediately before aseptic filling. In the first method, the sterilization temperature is generally above 72°C. After sterilization, it is cooled to 0-12°C before filling. It is required that there should be no microorganisms in the filling process. Thorough disinfection of pipes, bottles, bottle caps, air, etc., and investment costs And use cost is high, management difficulty is great. The second method needs to heat up the beer through diff...

AI Technical Summary

Problems solved by technology

In the first method, the sterilization temperature is generally above 72°C. After sterilization, it is cooled to 0-12°C before filling. It is required that there should be no microorganisms in the filling process. Thorough disinfection of pipes, bottles, bottle caps, air, etc., and investment costs and high cost of use, difficult management

The second method needs to heat up the beer through different temperature sections in the spray heating and sterilization equipment successively after the beer is filled. Generally, it reaches 62-63°C and then keeps it for about 10 minutes, and then gradually cools down. The equipment consumes a lot of energy. Coal-fired boilers generate steam as a heat source, resulting in large carbon emissions and pollution to the environment. If steam is generated by burning natural gas or oil as a heat source, the cost is too high