Salt stains can corrode the stainless steel finish of any item over time. You can avoid this by cleaning the salt stains with vinegar immediately. Add two teaspoons of white vinegar to 1 liter of water to make this solution. Next, use this solution to wipe the stainless steel surface. Afterward, rinse the cloth with water, and use it to wipe the steel surface before drying with a dry cloth or microfiber.