The brewing process for oatmeal stouts is similar to other types of stouts, with some variations due to the addition of oatmeal. The grains are mashed and then steeped in hot water, allowing the sugars and flavors to be extracted from the oatmeal and other grains. The wort (liquid extracted from the mash) is then boiled and hops are added. After boiling, the mixture is cooled, and yeast is added to ferment the sugars into alcohol. The beer is then conditioned, filtered, and packaged for consumption.