Food quality, environmental hygiene, and Beverage sterilization equipment It exhibits an intuitive relationship, and the sterilization of food itself is also referred to as the control of intrinsic environmental contamination. For solid foods, liquid foods, powdered foods, and meat products, beverage sterilization equipment generally falls into the following categories:

　　I. Microwave Heating Sterilization in Beverage Processing: Microwave heating utilizes radio waves with operating frequencies ranging from 300 MHz to 300 GHz. It works by directly interacting with the material, converting high‑frequency electromagnetic energy into heat. Microwave sterilization results from the combined effects of the thermal and biological impacts of microwave heating. Specifically, microwaves induce electric potential differences across microbial cell membranes, disrupting the distribution of electrons and ions around the cell and altering the permeability of the cytoplasm. As a result, microorganisms are deprived of nutrients, their normal metabolic processes are impaired, and their growth and reproduction are hindered, ultimately leading to cell death. From a biochemical perspective, the nucleic acids (RNA and DNA) essential for microbial growth and replication consist of tightly covalently bonded macromolecules that fold into complex structures. Microwave exposure can loosen, break, and re‑form these covalent bonds, inducing genetic or chromosomal mutations and even causing cellular disintegration. Thus, microwave sterilization leverages both magnetic field–mediated effects and biological mechanisms to achieve effective microbial inactivation. The use of microwave technology offers distinct advantages in terms of consistent sterilization temperature and time, product quality, shelf life, and energy efficiency.

　　II. High-Pressure Sterilization Technology for Beverage Processing: This technique involves placing food in a liquid medium and subjecting it to pressures ranging from 100 MPa to 1,000 MPa for a specified period, thereby achieving microbial inactivation much like thermal treatment. High-pressure sterilization avoids the quality‑degrading drawbacks associated with conventional heat processing, preserving the food’s intrinsic flavor, color, and nutritional content. Because the process relies on the rapid compression of the liquid medium, it ensures uniform sterilization, minimal contamination, safe operation, and lower energy consumption compared to traditional heat‑transfer methods, while also reducing environmental impact. It is suitable for processing a wide range of products, including meat, eggs, soy protein powder, fresh fruits, spices, milk, fruit juices, purified water, beer, and more.

　　III. Beverage sterilization equipment Pasteurization: Pasteurization is a low‑temperature heat treatment process that uses hot water as the heat‑transfer medium. The standard conditions are 61–63°C for 30 minutes, or 72–75°C for 10–15 minutes. During heating, it is important to ensure that the surface temperature of the product is 4–5°C lower than the internal temperature. Because pasteurized products have a relatively short shelf life, require longer processing times, and involve discontinuous production, prolonged exposure to heat can lead to changes in certain heat‑sensitive components; therefore, this method is generally suitable only for fresh milk processing companies.

　　4. Low‑temperature sterilization: Low‑temperature sterilization is a heating process designed to inactivate the microbial flora present in food, typically employing temperatures below 100°C. Since this method leaves a relatively high residual microbial load, additional processing steps—such as refrigeration, fermentation, the addition of preservatives, or deamination—are often employed to extend product shelf life. This approach is particularly suited to acidic foods with a pH of 4.5 or lower, as well as to products whose quality would deteriorate under more severe heat treatment. In recent years, it has also been applied to milk and other perishable products with short shelf lives.