The quality of high-end food storage containers ultimately depends on manufacturing craftsmanship. Caviar features soft texture and high molecular activity, requiring strict industrial standards for smoothness, tightness and cleanliness. Rough processing of ordinary tins may easily scratch ingredients and accelerate deterioration. Adopting advanced food-grade manufacturing techniques, this 100g caviar tin undergoes standardized production procedures including sheet rolling, integral forming, inner treatment, edge polishing and vacuum packaging. It eliminates processing defects with refined craftsmanship and creates a sterile, smooth and airtight professional storage container for caviar.

　　The tin body adopts integral deep drawing forming technology, different from traditional splicing and welding techniques. Selected original tinplate is repeatedly flattened by numerical control rolling equipment to control thickness deviation and ensure uniform density. Adopting high-pressure seamless drawing technology, the tin is formed in one piece without welding seams, avoiding welding residues, corrosion and leakage. The precisely calibrated radian ensures symmetrical mechanical structure, enhancing compression toughness to resist deformation during cold chain transportation.

　　The inner wall adopts sterile spraying and curing technology customized for caviar storage. The electrostatic atomization spraying technique enables even coating attachment without accumulation. After high-temperature curing, the coating firmly adheres to the metal surface to form a smooth mirror protective layer. The secondary dust-free polishing removes tiny particles, delivering a burr-free inner wall that prevents damage to caviar and maintains intact particle shape.

　　The can mouth is processed by precise turning and rounding. The numerically controlled lathe cuts the outline accurately with repeated manual polishing to eliminate sharp edges. The high-precision thread rolling ensures uniform spacing and smooth rotation without jamming or slipping. The integrally stamped sealing groove keeps the silicone ring closely fitted to maintain stable vacuum sealing and block external air effectively.

　　Finished products undergo dust-free purification and anti-rust passivation to remove metal debris and industrial dust. The surface passivation treatment improves corrosion and salt spray resistance, adapting to cold chain and marine transportation. The standardized sterile production line avoids impurity contamination. The exquisitely proportioned 100g capacity balances portability and fine storage. Meticulously crafted with rigorous techniques, this premium metal storage tin preserves the original fresh sweetness of caviar and serves high-end fresh food storage scenarios.