[Exterior]Wipe with a soft cloth and warm water mixed with mild dish soap, following the grain of the stainless steel. Dry thoroughly with a soft towel. For extra shine, use a bit of vinegar or a stainless steel cleaner.[Interior]Mix baking soda with warm water and gently scrub with a soft sponge. For tougher stains, vinegar works well. Rinse thoroughly and dry completely to avoid water spots."