A brewhouse system is a crucial part of the beer brewing process. It is where the majority of the work happens to transform raw ingredients into wort, the sugary liquid that will later be fermented into beer. The brewhouse includes several key components and stages: Mash Tun: This is where the malted grains (usually barley) are mixed with hot water to convert starches into fermentable sugars. The heat activates enzymes in the malt, breaking down the starches into simpler sugars.