A brewer's container is a vessel used to store and transport beer. The most common type of brewer's container is a VAT, which is a large metal or wooden container with a capacity of up to several thousand liters. Another type of brewer's container is a teacaddy, which is a smaller container made of wood, metal, or ceramic, and typically has a capacity of up to several hundred liters. Both types of containers are used to store and transport beer, and are essential for the brewing process.