What is the coating on the inside of food cans?

2. Can production and market data. Cans are made of three different materials: aluminum, tin-coated steel (tinplate) and electrolytic chromium coated steel (ECCS).

What kind of metal is used for canned food?

Cans are the most commonly used metal packaging and are made from steel or aluminum. Steel-containing cans are made from electrolytic tinplate or electrolytic chromium/chromium oxide-coated steel, also known as tin-free steel. Metal cans are classified by either the two-piece or three-piece manufacturing method.

Why tin is used to coat food cans?

Food cans are coated with tin and not with zinc because zinc is above the tin in reactivity series means more reactive than tin and can react with food elements preserved in it.

What is Bpani coating?

Aiming for high quality and safety coatings ~ Epoxy resins have been mainly used for interior coating of food and beverage cans traditionally. Since this epoxy resin is composed by bisphenol A (BPA), a potentially endocrine disrupting substance, as a starting material, the coating contains a small amount of BPA.

Can coatings for food?

At present, epoxy-based resins are the most widely used polymers for coating aluminium and steel cans. The North American Metal Packaging Alliance (NAMPA) has estimated that 95% of food contact can coatings are epoxy type.

Why tin plated steel is used to make food cans?

Unlike steel, tin is not affected by the acids in food, so that a layer of tin placed on steel sheet protects the steel in the can from corrosion.

What are pineapple cans lined with?

Food cans are usually tin coated steel. They may or may not have an organic coating, and many fruit cans leave exposed tin to reduce browning of the fruit with age.

Why tin is used to coat food cans instead of zinc?

Zinc is more reactive than tin. Zinc is less reactive than tin.

Can epoxy be used on metal?

It can be used for surfaces besides plastics, such as wood, brick, ceramics, metal, and concrete. Here’s a tip: You can speed up the cure time for epoxy adhesives by applying heat. Epoxy can be used for both metal and plastic.