Steam beer may be defined as a highly effervescent beer made by brewing lager yeasts at warm fermentation temperatures. It has two distinct but related meanings:
Historic steam beer, associated with San Francisco and the U.S. West Coast, was brewed with lager yeast without the use of refrigeration. It was an improvised process, originating out of necessity, perhaps as early as the Gold Rush. It was considered a cheap and low-quality beer, as shown by references to it in literature of the 1890s and 1900s.
Modern steam beer, also known as California common beer, was originated by Anchor Brewing Company, which trademarked the name Anchor Steam Beer in 1981. Although the modern company has corporate continuity with a small brewery which was still making traditional steam beer in the 1950s, Anchor Steam beer is a craft-brewed lager. The company does not claim any close similarity between its present day product and turn-of-the-20th-century steam beer.
Explanations of the word "steam" are all speculative. The carbon dioxide pressure produced by the process was very high, and one possibility is that it was necessary to let off "steam" before attempting to dispense the beer. According to Anchor Brewing, the name "steam" came from the fact that the brewery had no way to effectively chill the boiling wort using traditional means. So they pumped the hot wort up to large, shallow, open-top bins on the roof of the brewery so that it would be rapidly chilled by the cool air blowing in off the Pacific Ocean. Thus while brewing, the brewery had a distinct cloud of steam around the roof let off by the wort as it cooled, hence the name. It is also possible that the name derives from "Dampfbier" (literally "steam beer"), a traditional German beer that was also fermented at unusually high temperatures and that may have been known to 19th-century American brewers, many of whom were of German descent.
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In 19th-century California, not only ice, but even sources of naturally cold water, were probably unavailable to brewers. California brewers were forced to use lager yeast at higher ale temperatures.
Final flavors of beer are influenced by the strain of yeast and the fermentation temperature. Lager yeast is best used at temperatures from 55 to 32 °F (13 to 0 °C). Classic lagering of beers takes place over a period of time from weeks to many months at a temperature of 45 °F (7 °C). Lager yeasts are bottom fermenting, which is to say that after fermentation they settle on the bottom of the fermenter.[1]
Ale yeast is best used at temperatures from 55 to 75 °F (13 to 24 °C). Fermentation by ale yeasts produces a beer that has a distinctive ale flavor. Ale yeasts are top-fermenting, that is they settle out on top of the wort after fermenting (fermentation itself takes place in a suspension).[1] Steam Beer uses bottom fermenting lager yeasts at ale temperatures, which results in a very distinctive flavor profile that includes both ale and lager characteristics.
While steam beer is considered a specialty microbrew style of beer today, it was originally a cheap beer made for blue collar workers. Wahl and Heinus's American Handy Book of Brewing and Malting (1902) describes California Steam Beer as “a very clear, refreshing drink, much consumed by the laboring classes.” And while Anchor Steam is an all-barley malt beer, additives were often used in the early days. According to the book, "Malt alone, malt and grits, or raw cereals of any kind, and sugars, especially glucose, employed in the kettle to the extent of 331⁄3 percent... Roasted malt or sugar coloring is used to give the favorite amber color of Munich beer."
Jack London refers to steam beer in his "alcoholic memoir," John Barleycorn, in a passage explaining how he started drinking in late-1880s San Francisco:
As a budding writer, "a wild band of young revolutionists invited me as the guest of honour to a beer bust" and was challenged to a drinking contest.
Frank Norris's 1899 novel McTeague, set in San Francisco, sets the stage with a reference to steam beer in its opening paragraph:
When he marries, his wife convinces him to adopt more refined habits:
According to the Beer Judge Certification Program, the term California common beer, designated style 7B, is "narrowly defined around the prototypical Anchor Steam example", and other commercial examples include Skyscraper Brewing Company Lug Nut Lager, Southampton West Coast Steam Beer, Old Dominion Victory Amber, Flying Dog Old Scratch Amber Lager, and Eagle Steam Beer. The style "showcases the signature Northern Brewer hops (with woody, rustic or minty qualities) in moderate to high strength", is fermented with "a lager yeast, but one that was selected to thrive at the cool end of normal ale fermentation temperatures", and was traditionally fermented in open fermenters.
Kentucky Common Beer was brewed in and around Louisville, Kentucky from mid-19th century until Prohibition. Roughly 80% or all beer brewed in Louisville at the time was of this type.
A British brewery, the Lincolnshire Steam Beer Co., derives its name from the steam-powered brewing machinery.
When Canadian brewer Sleeman introduced a product called Steam Beer in Canada in 1999, Anchor sued for trademark infringement, since it had trademarked the term "steam beer" in Canada ten years earlier. Canadian courts dismissed the suit and subsequent appeals,[2] ruling that Anchor's Canadian trademark was invalid, since the beer had not been marketed in Canada up to that time. After Sapporo bought Sleeman in a $400-million takeover in 2006,[3] Sleeman's production of Steam Beer was discontinued.
In Richmond, Virginia the remains of a former Yuengling brewery along the James River were once called "David Yuengling Jr.'s James River Steam Brewery" and are located at (or near) 912 East Main St.
St. Louis guide for citizens and strangers (http://books.google.com/books?id=PoUSAAAAYAAJ&dq=st.%20louis%20guide%20for%20citizens%20strangers&pg=PA87#v=onepage&q=steam%20beer&f=false) shows advertising copy for J.F. Boyd & Co. St. Louis Ale, Porter and Lager Beer Steam Brewery.
"Adam Wood Steam Brewery" is listed as having been founded in 1859, at: http://pittsburghsigns.org/archives/2004/05/otto_milk_1.html
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