27 September 2008
posted by benjyIt’s the last brew for a month or two, and the first ever attempt at a Kolsch, so should I say Kolsch-style ale, since Kolsch is only brewed in Cologne by members of the Kolsch Konvention. I traded some Maris Otter malt for eighteen pounds of Best’s pilsner malt with John Brush, and he was kind enough to provide the yeast, Wyeast 2565 Kolsch, used in a couple of his previous batches. I added a pound each of Munich and wheat to the pilsner, and did a multi-step mash which ended up taking about 2.5 hours, what with fiddling with the temperature rests, heating in between, and chasing my two-year old around. Perhaps the lengthy mash contributed to our high extract efficiency, as we overshot our original gravity of 1.048 by 5 points, at 1.053. Not quite an imperial Kolsch, but outside the style guidelines (BJCP says 1.044 to 1.050).
I first-wort-hopped with a couple of ounces of Northern Brewer, and then added an ounce of Mt. Hood with 15 minutes remaining. The chill went well, with slightly cooler ground water getting the temperature down to 70F. While aerating the wort, I chilled the primaries to about 58F, which rose to 60F when fermentation began.  I will give it a week and then see how the gravities are, and time the racking to secondary based on the attenuation. The ale is supposed to lager for a month as close to freezing as possible.
