Dating hole in cap cans
Fast forward to today, and now virtually all beer cans in this country are made out of an aluminum alloy, a metal brewers prefer thanks to its lighter weight and resistance to rusting.In addition to its packaging material, the beer can's shape also changed over time.
The five cans sat on the wall until 1970, when the bar's owner got the idea to collect cans and display them alongside the original five.
Less than two years before that, the American Can Company managed to overcome two challenges which, until then, had precluded them from canning beerthe company successfully produced cans strong enough to hold the pressurized carbonated beverage and "keglined" the inside of the cans with a special coating that prevented any metallic taste from flavoring the beer.
The key development for storing beverages in cans was the interior liner, typically plastic or sometimes a waxy substance, that helped to keep the product's flavor from being ruined by a chemical reaction with the metal.
Another major factor for the timing was the repeal of Prohibition in the United States at the end of 1933.
Using the church key, an imbiber would puncture a triangular hole at the top of the beer from which he/she would drink, in addition to puncturing a smaller hole on the opposite side to let air into the can and facilitate the free flow of beer.
Cone tops, on the other hand, could be opened with the same tool used for glass bottles.
From this time, lightweight tin cans could be used.
Felinfoel Brewery was a major supplier to British armed forces abroad in the Second World War - cans saved a great deal of space and weight for wartime exports compared to glass bottles, and did not have to be returned for refilling.
This environmental nuisance was fixed in 1975 when Reynolds Metals Company designed a stay-tab, which the company introduced to the public through Falls City Brewing Company in Kentucky.
This stay-tab is currently used on virtually all beer and soda cans around the world.
But today, that dynamic has been totally turned on its head, with more than 500 craft breweries in over 40 U. states choosing to package their carefully created beers in a can. Even though canned foods date back to 1813, the first successful attempt to put beer in a can wasn't accomplished until 1935 and was the offspring of a partnership between the American Can Company and the New Jersey-based Gottfried Krueger Brewing Company.