Filtration at Sierra Nevada



	Next, we carefully centrifuge and cold-filter our ales and lagers. This gentle process removes haze-forming proteins and yeast, producing a clear, bright beer without affecting flavor, aroma, or mouthfeel.


	Here at Sierra Nevada Brewing Co., we are more than a little obsessive about the quality of our beers, so we built the most comprehensive quality control program of any craft brewer in the country. We start with a detailed analysis of our raw ingredients and go on to monitor every stage of the brewing process. By the time an ale or lager leaves our warehouse, we have run over 200 individual tests, checking everything from pH and dissolved oxygen levels to bitterness, color, and taste.