Compact tank set for melting, mixing, storing or buffering chocolate, compound, fat masses and creams. This is a custom built installation made to the customer’s specifications and needs. Generally, this installation comprises several tanks for the mixing, controlled melting and storage or buffering of masses, including an (optional) automatic CIP system, intermediate pumps and piping, plus dosed discharge to the consumption point. Tanks are of a vertical design and are excecuted with triple jacket: product zone, heating medium circulation and thermal insulation. They furthermore include an automatic heating media generation system with centrifugal pump, electrical heater, temperature probe and control elements.