Designed for Brewing. Built to Last. The new line of Brewbuilt kettles, made from 304 stainless steel, offers an unparalleled mix of features for the price. At the very top of the list are two welded-in place couplers that offer a lifetime of leak free use. As you can imagine, welding in a coupler costs more than punching a hole and using a gasketed (ie weld-less) fitting. Welded fittings offer a permanent connection that to us is worth every penny. The second unique feature that we absolutely love about these kettles is the notched lid with silicone plug. This notch allows you so much flexibility; you can use an immersion chiller, one of our Ultimate Sparge Arms for mashing, tie off hop bags, take a temp reading during cooling, or whatever else we all can dream up.