7BBL oil-heated brewing system and 15BBL fermenter: technical analysis and production practice of industrial-grade equipment for craft beer.

I. Basic Equipment Parameters and Industrial Standards
7BBL oil-heated brewing equipment
Capacity system: 7BBL (about 0.82 cubic meters) is the international common beer production volume unit, suitable for small and medium-sized craft breweries or experimental production line 118.
Heating System: Adopting thermal oil circulating heating technology, it realizes uniform heat transfer through the welded jacket of honeycomb Miller plate, and the temperature control precision reaches ±0.5℃, which meets the demand for precise temperature control during the malt saccharification stage12.
Material process: the main body is SUS304 food-grade stainless steel, the inner wall adopts TIG welding process and is polished to 0.4μm roughness, which is in line with GB 4806.9-2016 food safety standards13.