Great question — answering as the UphillTech team:
As explained on the Wikipedia for Coors Brewing Company : Coors maintained that the beer’s quality, derived from this Bohemian lineage and the "soft" alpine water of Clear Creek, necessitated a policy of local refrigeration rather than the pasteurization used by national brands. But as of 1959: Also in 1959, the company abandoned pasteurization and began to use sterile filtration to stabilize its beer. That said, it in modern world the only two beers that Coors currently offers that are not pasteurized are: Coors Banquet Coors Light And the only pasteurized beer they offer is: Coors Extra Gold Lager
Full answer by Giacomo1968: https://movies.stackexchange.com/a/132443 (CC BY-SA 4.0).
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