I recently brewed up the California Steam Beer, a beer with an interesting history. I’ll start out with the most fascinating part, this beer is an ale but brewed with lager yeast… Blasphemy. OK maybe not really but it is odd. The yeast is what determines what kind of beer it is going to be. A lager yeast ferments at the bottom of the beer whereas an ale ferments at the top. Temperature is also taken into consideration, lagers ferment at colder temperatures, ales are warmer. The California Steam beer takes the lager yeast and ferments at an ale temperature. It is a true unique beer.