There are many “theories” why Steam beer has the name it does, ranging from the nineteenth-century use of steam power in breweries to the high temperature of the primary fermentation, and even the popular theory of the sound the beer made when casks of the lively beer were broached.
Nonetheless, it is technically the only classic beer style to originate in the United States. Like Altbiers, Steam beer goes through a high-temperature primary fermentation as an ale does and then are lagered in cold temperatures.
The difference is that lager yeast is used instead of ale yeast. This produces a very fruity and mellow lager. Also called California Common. Serve at not less than (45 degrees F).
