Reasons and Solutions for Rust Spots on Stainless Steel Beer Kegs:

1. Reasons for rust formation generally include the following situations:

① Contact with carbon steel ironware/parts, causing iron element contamination;

② Depending on the customer's geographical location, the air may contain components of seawater and salt. Stainless steel barrels may suffer corrosion over time in high-salt seawater environments, resulting in contamination and rusting on the surface.

Solution:

1. Oxalic Acid / Citric Acid: Completely immerse the barrel in a plastic container with oxalic acid / citric acid. During immersion, gently wipe the surface of the barrel with a scouring pad until the rust spots are completely removed. After removal, rinse the acid solution off the surface with water. The treated barrel has been passivated and is less prone to rusting.

2. Stainless Steel Pickling and Passivation Paste: Apply an appropriate amount of stainless steel pickling and passivation paste to the stainless steel surface to be treated, with a thickness of 1-2 millimeters. Leave it on for 5-30 minutes or longer. The duration and effectiveness of the pickling process depend on time and temperature, with longer times required at lower temperatures. During the treatment, scrub the surface several times with a brush until all oxidation and rust are completely removed. Rinse thoroughly with clean water to prevent re-rusting. For first-time users or those without experience, it is advisable to conduct a small-scale trial before full-scale use.

Note: During the treatment process, wear protective gloves and goggles, and ensure adequate safety precautions.

Any questions on beer kegs, please let us know

• Email: Director@sskeg.com
• Whatsapp: +8613054501345