Colorado Breweries History: Killians Beer name come from the name of the last member of a brewer dynasty, the Killian, owner of the 'Mill Park Brewery' in Enniscorthy, county of Wexford in Ireland. Coors Brewing prodcues Killians in the United States. Coors uses the Killians recipes and same tradition of slow-roasting four traditional ale malts to give it a rich flavor and deep chestnut brown color. malt