Concentrator
Human Robot Brewery

Smoked Doppelbock. Named for the long decoction and wort boil, Concentrator is brewed to an original gravity of 24 plato. Brewed with 30% smoked malt, munich, and a pinch of roast. We decocted and boiled this dopplebock over direct flame until the color and concentration of sugars were just right. This beer was open fermented in a cold box at 5c, allowing the natural rise in temperature generated by other energy of fermentation. The fermentation peaks at 10c, and as it slows the temperature naturally falls back to 5c where the beer was allowed to condition for 4 weeks. This type of fermentation harkens back to the days when a beer cellar was a cold cave carved out of stone, and beer was only brewed when the cave could be kept at a constant temperature.