The safety bottom line of storage containers is rooted in every raw material ingredient. For fine materials such as high-purity dry goods, premium spices, high-grade tea and rare tonics, the purity of container materials directly determines storage safety. Adhering to safe ingredient ratios, this 100g vacuum tin abandons inferior materials and harmful additives. Based on food-grade raw materials, it clarifies every material component including tinplate substrate, inner protective coating and sealing ring. With no harmful precipitation and no peculiar smell residue, it protects the pure quality of fine ingredients with pure and safe raw materials, perfectly meeting the demand for exquisite small-batch storage.

　　The main tank body is made of high-purity original tinplate refined from low-carbon iron alloy. It contains extremely few impurities and eliminates heavy metals, oxidized contaminants and residual pollutants from recycled iron. Free of harmful heavy metals such as lead, mercury and cadmium, it complies with food contact safety standards. With uniform component density and compact molecular arrangement, the purified substrate is resistant to oxidation, corrosion and deformation without metal precipitation during long-term storage, eliminating material pollution fundamentally.

　　The inner wall coating adopts food-grade environmentally friendly resin made of modified natural epoxy resin and harmless edible additives, containing no formaldehyde or benzene substances. With strong adhesion, the dense protective film isolates direct contact between metal and ingredients. Featuring stable chemical inertness, it resists acid, alkali, grease and low temperature. It never reacts with acidic or aromatic substances in tea and spices to avoid odor interference, maintaining a clean inner wall without yellowing or peeling.

　　The sealing ring is made of high-purity food-grade organic silica gel without recycled industrial rubber and pungent plastic odor. Flexible and durable, the silicone material withstands extreme temperatures and aging. It maintains stable elasticity after repeated compression to create a tight vacuum space. Free of plasticizers and inferior fillers, the safe silicone prevents ingredients from moisture deterioration by blocking external air and water vapor.

　　All auxiliary materials are strictly controlled. The surface uses water-based environmental ink with no volatile harmful gas. The edge anti-rust oil is non-toxic and impermeable to prevent oxidation. With a lightweight 100g capacity and pure safe ingredients, it is suitable for high-end sample packaging, luxury gift cans and personal storage. Every component is carefully screened to create a safe storage tin. With a pure and harmless formula, it provides pollution-free storage protection for delicate supplies.