Gluten-free beer is a type of beer that is specially crafted for individuals with gluten sensitivities or celiac disease. It is made without traditional barley ingredients that contain gluten and instead utilizes alternative grains like sorghum, rice, millet, or buckwheat. The brewing process involves milling the grains to extract fermentable sugars, mashing them with hot water to break down starches, separating the liquid wort from solid grain residues, boiling the wort with hops for flavoring, adding yeast for fermentation, and undergoing a maturation and filtration process. The end result is a gluten-free beer with unique flavors and characteristics.