uht sterilization
UHT sterilization involves heating product to temperatures exceeding 135°C for just a few seconds to achieve commercial sterility. This allows milk and juice to be stored at room temperature for months without spoilage. It is the ideal technology for brands targeting export markets or regions with limited cold chain.
Engineering the Ultra-High Temperature Process
Achieving the ultra-high temperatures required for sterilization necessitates advanced tubular or plate heat exchangers capable of handling high pressure. The product must be immediately cooled and moved to an aseptic filling environment. This seamless integration of heating and sterile packaging defines a modern, high-performance UHT line.
Complete Elimination of Microorganisms for Ambient Storage
Product safety is the paramount concern when dealing with shelf-stable dairy products designed for the global market. Weishu Milk Machinery provides UHT sterilization systems that utilize deaerators to remove oxygen, preventing oxidation and maintaining flavor. Our technology ensures that your product remains safe and delicious after months on a retail shelf.
Indirect Tubular Heat Exchange for High-Viscosity Products
For products that are thicker than standard milk, our UHT systems utilize tubular heat exchangers that prevent clogging at extreme temperatures. This design is particularly effective for chocolate milk and plant-based dairy alternatives. The indirect heating method ensures uniform thermal distribution, preventing "hot spots" that could lead to burnt flavors.
Sterilization-In-Place (SIP) for Total Aseptic Assurance
Maintaining a sterile environment is the biggest challenge in ambient milk production, which is why our equipment features automated SIP cycles. Before production begins, the entire system is sterilized with superheated water to eliminate contaminants. Weishu’s rigorous engineering ensures that every valve is designed for 100% sterility and aseptic integrity.