The ThermoBarrel mash tun is perfect for home brewers and small - scale commercial brewers. Use it during the mashing process to convert starches into fermentable sugars. It's made of stainless steel with a foam insulation design. The ports are 1/2' NPT compatible, but remember, you can't directly heat it from an external source. It's a durable and easy - to - clean option that will serve you well for many brewing sessions.