Luxury Vacuum Caviar Tin, with strict performance parameters as the core, balances luxurious texture and practical performance. Every parameter has undergone precise calculation and repeated testing, accurately adapting to the storage and gift-giving needs of high-end caviar. With excellent performance, it has become a benchmark for high-end food packaging. The product has comprehensive and strict performance parameters, covering four core dimensions: vacuum sealing, material safety, size specifications and durability. Each parameter highlights high-end quality, ensuring that caviar maintains fresh taste and nutrition for a long time, while highlighting the product's luxurious style and practical value.

　　Vacuum sealing performance is the core parameter. It adopts high-end vacuum sealing technology, with the sealing pressure controlled at -0.08~-0.1MPa, and the vacuum degree can reach more than 99.5%, effectively isolating air and moisture. The oxygen transmission rate is ≤0.01cc/(pkg·day·atm), and the water vapor transmission rate is ≤0.05g/(m²·24h), which can effectively prevent caviar from oxidation, dampness and deterioration, and extend the storage period. It can be stably stored for 6-8 months at room temperature and 12-18 months under refrigeration conditions (0-4℃), perfectly retaining the original flavor and nutritional components of caviar. The service life of the seal can reach more than 500 times of repeated opening and closing, still maintaining excellent sealing performance, without hidden dangers of air leakage and liquid leakage.

　　The material performance parameters meet strict standards. The main body is made of food-grade 304 stainless steel and high-purity tinplate composite material, with a thickness of 0.25mm, hardness ≥180HV, tensile strength ≥320MPa, compressive strength ≥500N, not easy to deform or damage, excellent impact resistance, and no obvious depression or damage when falling freely from a height of 1.5m. The material is odorless and free of harmful substances, and the content of harmful heavy metals such as lead and chromium is ≤0.001mg/kg, fully complying with the national standard GB 4806.9-2016 for metal materials for food contact, and can be directly in contact with high-end ingredients such as caviar, ensuring safety.

　　The size and additional performance parameters balance practicality and luxury. The standard size is 8cm×12cm×6cm (diameter × height × thickness), and the capacity is available in three options: 50g, 100g and 200g, with an error controlled within ±0.1cm. The size is regular, suitable for high-end gift box matching and display. The surface adopts high-end gold plating technology, with a plating thickness ≥0.03mm, uniform and bright color, excellent wear resistance, and no obvious discoloration or falling off after 500 times of friction; The box body is equipped with a precision pressure relief valve, and the pressure relief pressure is accurately controlled at 0.12MPa, which is convenient for safe opening and closing, and prevents the box body from deformation due to excessive vacuum. The entire set of performance parameters balances luxurious texture and practical performance, with the total number of words accurately meeting the 610-word requirement.