The process of canning beer begins with empty, pre-printed, 12 ounce, aluminum cans without tops. Cans are automatically fed on to a conveyor belt and first rinsed with pure water to clean the inside. They are then purged of air with CO2 into the empty vessels. The cans then proceed down the line and are filled with beer. After filling, lids are automatically placed on top of the passing can. As the lid drops, a simultaneous burst of CO2 pushes the last bit of air out from under the lid.
With the can now full and the top in position, it moves down the line to the seamer. Each can is rotated and a motor spins the can at a high speed with a crimping seamer, sealing the lids on the cans. Cans are filled, lidded and seamed individually at a rate of up to 120 cans per minute.
Once seamed, the cans move through an exterior rinsing process, are checked for fill level, rinsed, dated and finally six-packed for sale.
From soft drinks to craft beers, and coffees and teas to new energy drinks, Crown leads the beverage packaging industry with innovative technologies that redefine how the world looks at beverage cans.