Wash depression dishes in a mild dish soap. To bring out the sparkle and for streak free dishes put a tablespoon of vinegar in the water. When cleaning a glass with a pattern I use a soft to medium tooth brush to get the dirt out of the indentations of the glass. Depression dishes should never, ever be put into the dishwasher, harsh detergents will cloud the glass over time. We love the beautiful shine on do not want to destroy its natural lustre.