Anchor Steam is a unique beer that falls into the category of a lager. Although it may have some ale-like characteristics, it is brewed using a lager yeast and undergoes a fermentation process at cooler temperatures. This results in a crisp and clean beer with a smooth finish.
The term “steam beer” actually has a historical significance. Back in the 19th century, this style of beer was brewed in California by fermenting it in open-air vats or shallow vessels. The steam rising from these vessels led to the name “steam beer.” This method of fermentation gave the beer its distinct flavor profile and carbonation.
Anchor Brewing Company, based in San Francisco, played a significant role in reviving and popularizing the steam beer style. They trademarked the term “steam beer” in 1981, but they refer to their beer as “Anchor Steam” to avoid any confusion with other beers using the term.
As a sommelier and brewer, I have had the pleasure of tasting and analyzing Anchor Steam on several occasions. The beer pours a deep amber color with a thick, foamy head. The aroma is malty with a hint of hop bitterness. On the palate, it has a toasty and caramel-like malt character, balanced with a subtle hop bitterness. The carbonation is moderate, giving it a refreshing effervescence.
One aspect that sets Anchor Steam apart from other lagers is its fermentation process. While most lagers are fermented at much cooler temperatures, Anchor Steam is fermented at a slightly higher temperature, closer to ale fermentation temperatures. This gives the beer a fruitier and more robust yeast character, similar to some ales.
It is worth noting that Anchor Steam is not a traditional German-style lager nor a classic English ale. It falls into its own unique category as a California common beer. This style is characterized by its use of lager yeast, but with a fermentation temperature range that bridges the gap between lagers and ales.
Anchor Steam is a lager beer that showcases the best of both lager and ale characteristics. Its history and brewing process give it a distinct flavor profile that sets it apart from other beers. Whether you're a fan of lagers or ales, Anchor Steam is definitely a beer worth trying for its unique and refreshing taste.