Miller Coors lists the ingredients in Coors Light as water, barley malt, corn, yeast and hops. Coors Light came out in 1978 and it has 4.2 percent alcohol by volume.
Although beer producers aren't legally required to list their ingredients, Miller Coors chose to after a food blogger started a petition requesting an ingredients list. That petition collected over 40,000 signatures. As of 2014, Coors Light is manufactured by the Coors Brewing Company in Golden, Colo. and Milwaukee, Wis. Coors Light gets its name from Adolph Coors, who started the Adolph Coors Company in 1873. He believed high-quality water was beer's key ingredient, and most of the water used in Coors Light is from the Rocky Mountains. Coors Light was created in the 1970s because people wanted healthier beer options. Coors Light received a silver medal in the Great American Beer Festival of 2005.
In 2007, Coors Light introduced cold-activated bottles, which had a mountain logo that changed colors from gray to blue when the beer reached 46 degrees Fahrenheit. Cold-activated cans were introduced in 2009, and in 2011 a new design was introduced with two stages of coldness, with the second stage turning the logo to a darker shade of blue.