How to Polish Seaglass to Remove Salt:Here’s what you need: cloth, cut into 2 pieces, one large, one small, folded in half; Vegetable or baby oil&gt; Add a VERY SMALL amount of oil to the small piece of cloth. Rub this all over the sea glass until all the salt is removed (which is really quick, especially with the first few pieces) Dry off with the larger piece of cloth, and let it sit for about 10 minutes, or until all the oil has been absorbed. Beautiful salt free sea glass!