What are the commonly used food sterilization equipment?

Release Date:

2022-04-24

As living standards improve, new demands are being placed on food hygiene and safety. For certain foods, disinfection is required before consumption. Food sterilization involves killing or inactivating the microorganisms that are the primary causes of food spoilage, thereby stabilizing food quality and effectively extending its shelf life. This process reduces the number of harmful bacteria remaining in the food, helping to prevent human (typically intestinal) infections or pre‑infections caused by ingesting live pathogens. So how do food sterilization devices achieve this?

　　As living standards improve, new demands are being placed on food hygiene and safety. For certain foods, disinfection is required before consumption. Food sterilization involves killing or inactivating the microorganisms that are the primary causes of food spoilage, thereby stabilizing food quality and effectively extending its shelf life. This process reduces the number of harmful bacteria remaining in the food, thus preventing human (typically intestinal) infections or pre‑infections caused by ingesting live pathogens. So… Food sterilization equipment How does it kill bacteria?

　　1. Autoclaving

　　Food sterilization equipment employing high-pressure sterilization (high hydrostatic pressure sterilization) involves packaging food ingredients in a specified manner, immersing them in a liquid medium—typically edible oil, glycerin, or an oil–water emulsion—and subjecting them to pressures ranging from 100 to 1,000 MPa for a predetermined period, thereby achieving the desired level of sterilization.

　　2. Low-Temperature Sterilization

Food sterilization equipment

　　Low-temperature pasteurization is a heating process that partially inactivates microorganisms in food. It typically employs temperatures below 100°C. Because low-temperature pasteurization leaves a higher microbial load, additional processing techniques—such as refrigeration, fermentation, the addition of preservatives, and deoxygenation—are used to extend product shelf life.

　　3. Pasteurization

　　Food sterilization equipment: Pasteurization is a relatively low-temperature heat treatment typically carried out at temperatures below the boiling point of water. It is an ancient technique that continues to hold practical value today.

　　4. Microwave Sterilization

　　Microwave food‑sterilization equipment boasts strong penetration, energy efficiency, high heating efficiency, and a broad range of applications. Moreover, microwave sterilization is easy to control, ensures uniform heating, and preserves the nutritional content as well as the color, aroma, and flavor of foods, keeping them close to their natural quality. This technology is primarily used for sterilizing meat, fish, soy products, milk, fruits, and beer.

　　5. Ultraviolet Sterilization Method

　　Ultraviolet disinfection technology in food sterilization equipment is widely used for the disinfection of air, water, and food surfaces, as well as food packaging materials, food processing facilities, equipment, utensils, and work surfaces.

　　Currently commonly used Food sterilization equipment It is microwave sterilization, in which the thermal effect of microwave sterilization equipment provides rapid heating, while its non-thermal biochemical effects further enhance the sterilization efficacy. Compared with conventional heat‑based sterilization, it can achieve insecticidal and bactericidal results at relatively lower temperatures and within shorter processing times.

Zhucheng Jintai Food Machinery Co., Ltd.

Address: Haojia Industrial Park, Zhucheng City, Shandong Province
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