Double Layered Pressure Maintaining Fermentation Tank Craft Beer Equipment 304L Stainless steel For Beer/Whiskey(FOB Price)Stainless steel three layer insulation and pressure resistant conical fermentation tank Preferred food grade 304 stainless steel material, sturdy and durable, with a wall thickness of 3mm Incorporating a honeycomb sandwich structure into the tank walls serves a dual purpose: facilitating ice water circulation and enabling precise control over fermentation temperatures. Expanding the fluid volume within the interlayer, shaped conically, significantly