In the late 1920s Pabst and Anheuser-Busch, sensing the eventual end to Prohibition, asked American Can to start working on the beer can again. By the early 1930s American Can had developed a can strong enough to withstand the pressures of packaged beer. They finally solved the problem of lining the can with a moldable plastic called Vinylite. Initial tests with Pabst beer were positive but the big brewers wouldn’t commit until the can had been tested in a real market.