Stainless steel cask surface corrosion resistant coating, so you can avoid corrosion of stainless steel tanks can. This layer of the coating will not easily with vinegar acidic substances from a chemical reaction. We are also not affected by the subsequent use. But the best time to clean after use. And try not to use too sharp or sharp things to damage this layer coating. Stainless steel tanks is not easy to have a great relationship with rust stainless steel components. Stainless steel casks containing chromium, nickel, aluminum, silicon, etc. are provided for no rust very important help. General stainless chromium content is generally not less than 12 per cent higher even reached 18 per cent means that amount within this range is the best stainless steel. After adding chromium steel and other elements, you can change the properties of the steel, so it can be protected when in use will not rust easily. Internal structure of the stainless steel barrels more uniform contact of various components on the more closely, so more is not easily corroded. Stainless steel has the ability to resist atmospheric oxidation, but it does not mean that in itself will not rust. Corrosion resistance of stainless steel barrels with its size is the chemical composition of the steel itself, plus mutual status, conditions of use and environmental media type change, and corrosion phenomenon is normal.