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Tinplate cans offer excellent sealing properties. Sealed with a roll-to-seal method, they prevent air from easily entering. Their seal not only blocks air but also effectively prevents moisture from entering, making them particularly suitable for coffee products that require dry storage.

The materials used for metal packaging cans vary depending on the application. Typically, metal packaging cans are made of materials such as tinplate, aluminum, and tin-free steel (TFS). Each of these materials has different properties and is suitable for different packaging needs.

Food safety is a crucial consideration in the packaging industry. Tinplate cans have proven themselves to be extremely safe as food packaging materials over many years.

Rust-prone metal packaging cans: 1. Ordinary iron cans 2. Carbon steel cans Rust-resistant metal packaging cans: 1. Aluminum cans 2. Stainless steel cans 3. High-quality tinplate cans

The protective effect of the tin layer is limited, especially when storing acidic foods, where there is a risk of tin corrosion. Therefore, during the production process, a protective coating or lining is often added to the inner surface of tinplate cans to further prevent direct contact between food and metal.

Tinplate packaging cans are widely used for beverages and liquid foods, especially products that require a good seal, such as carbonated beverages and beer. Tinplate packaging cans are not suitable for packaging foods with high acidity or high salt content, such as ketchup, fruit vinegar, and preserved foods.

The tin-plated layer on the surface of tinplate plate can not only resist the erosion of air and moisture, but also prevent the metal from directly contacting food. Especially in acidic foods (such as canned fruit and canned tomatoes), the protective performance of tinplate plate is particularly important.

Tinplate packaging cans have extremely strong pressure resistance and impact resistance. This structural strength can effectively prevent deformation and cracking during food transportation, stacking and handling, thereby protecting the internal food from external damage.

Tinplate packaging cans can effectively isolate air, moisture, light and harmful substances, and prevent oxygen from entering the can. Oxygen is the main factor causing coffee oxidation and flavor loss, and being able to prevent the entry of oxygen directly affects the shelf life of coffee.

Many foods (such as canned food, juice, dairy products, etc.) contain more sensitive ingredients, such as vitamins, fats, etc. These ingredients are easily damaged by oxygen and ultraviolet rays. Therefore, metal tin packaging cans need to have anti-oxidation and anti-ultraviolet functions.