The automatic back pressure sterilization machine (also known as UHT ultra-high temperature sterilization equipment) is an efficient sterilization equipment specially designed for liquid and canned food. It adopts the core technology of steam heating and compressed air back pressure, and achieves microbial inactivation through precise temperature control, pressure control, and holding time. The device has a wide range of adaptability and can meet the sterilization needs of various heat sensitive and low acid foods such as milk, juice, soy milk, sauces, soups, etc. While killing harmful microorganisms, it preserves the original flavor, color, and nutritional value of the product. It adopts food grade stainless steel pipelines and PTFE adapter components, matched with pneumatic valve control and screws