The craft beer fermentation tank is mainly used to inoculate the yeast after cooling down the wort to provide a suitable environment for the conversion of maltose into alcohol. The beer fermentation tank is equipped with a cooling jacket, which can be used for temperature control, cooperate with the hop dry injection port, CIP tank washing device, sampling valve, wine outlet and sewage outlet, water-sealed mechanical pressure regulating valve, titanium rod inflation port, and beer at the same time Fermentation is controlled by low temperature, so the fermentation tank is equipped with insulation, and it is generally configured for polyurethane foam insulation.