A well-sealed can can effectively isolate oxygen and moisture, preventing biscuits from oxidation and deterioration and moisture absorption and deliquescence. According to relevant research data, if stored in a dry, sealed tinplate can, the shelf life of biscuits can be extended to 12 months or even longer.

For example, the packaging of acidic food cans such as jam and ketchup often requires thicker tinplate to resist the erosion of acidic components. Generally speaking, the thickness of tinplate for such food packaging cans is about 0.20 mm to 0.30 mm.

The coating finish of electrolytic tinplate is high, and the surface of the tin layer after electrolysis treatment is smoother and brighter, which is conducive to subsequent printing, spraying and other fine processing. The tin layer of non-electrolytic tinplate is relatively thick and is usually not suitable for detailed processing.

The following are common steps for cleaning tinplate cans: 1. Prepare materials 2. Soak and decontaminate 3. Gently scrub 4. Rinse clean 5. Dry and store

It is difficult to repair deep dents or can deformation caused by large impact or severe extrusion. In this case, the internal metal structure of the tinplate can has changed, and some materials may have cracks or interlayer separation, and external force alone cannot completely restore it to its original state.