Principle of vacuum preservation - The vacuum system creates a negative-pressure, low-oxygen environment that isolates bacteria and moisture from the air. Key benefits - Extends freshness by reducing air and moisture exposure. - Helps preserve quality and reduce spoilage compared with vacuum-free storage. Performance - Freshness lasts three to five times longer than in a vacuum-free state. Function and compatibility - Function: vacuum preservation to maintain the integrity of stored items. - Compatibility: designed to work with vacuum preservation dishes and compatible vacuum containers. Size and materials - Size and construction vary by model; refer to the specific product specifications for exact dimensions and materials. Additional attributes - The vacuum environment provides protection from air exposure, contributing to longer-lasting freshness for stored contents. Use scenarios - Home kitchen: store fresh produce, leftovers, and prepared meals to extend their shelf life. - Professional food prep or catering: batch-store ingredients and prepped dishes to reduce waste during service. - Sensitive item storage: maintain the quality of perishables or samples that are prone to degradation from air exposure when using appropriate vacuum dishes or containers.