Beer Info FAQ

How do aluminum cans get sealed?

How do aluminum cans get sealed?

The inside of the can is lined by spray coating an epoxy lacquer or polymer to protect the aluminum from being corroded by acidic contents such as carbonated beverages and imparting a metallic taste to the beverage. After filling, the can "end" is sealed onto the top of the can.

How do they put lids on cans?

The head and roller spin the can in a complete circle to seal all the way around. Then a pressure roller with a different profile drives the two edges together under pressure to make a gas-tight seal. Filled cans usually have pressurized gas inside, which makes them stiff enough for easy handling.

What equipment is used to seal tins?

A can sealer is a machine that seals the can lid to the can body in a way that is completely airtight. The lid of the can is usually made of tin-plated steel.

How do they close cans?

The 3 piece can is transported flat, formed at site and one lid attached by a “double seaming” machine thus forming the bottom of can. It is then filled with content and the third piece or the lid attached sealing the can and it's contents.