Overview: Explaining about passivation process, this paper defines that the passivation is an acid based process, which changes stainless steel from active state to a passive state where corrosion can be resisted. It details how a fabricated stainless steel when comes in contact with various iron, tool steel, and metal chips will loss the original corrosion resistance of that product, resulting unsanitary surfaces which are not suitable for food processing. The paper highlights how Millard's large In-House passivation process provides a long, corrosion and rust free life for the product. Also included are results like maximum stainless steel corrosion protection, sanitary durability, no rust discoloration, and elimination of iron contamination which can be obtained after implementing Millard's in-house passivation process.