Washing by Hand: When washing by hand, avoid using scouring pads and/or abrasive detergents. To prevent spotting, combine quarter cup ammonia with a mild lemon detergent. Rinse in clean water and air dry on a rack. Clean vases and decanters by filling them half-full with moderately hot water, a small amount of mild detergent, two tablespoons of white vinegar or ammonia and 1/2 cup uncooked rice. Swirl the rice around for a few minutes to remove residue. Rinse well with moderately hot water and air dry, upside down, on a rack. *Always hand-wash painted glassware. Residue & Stain Removal: Clean vases and decanters by filling them half-full with moderately hot water, a small amount of mild detergent, two tablespoons of white vinegar or ammonia and 1/2 cup uncooked rice. Swirl the rice around for a few minutes to remove residue. Rinse well with moderately hot water and air dry, upside down, on a rack. Remove more stubborn stains by filling the container with warm water and dropping in a denture-cleaning tablet; let it sit until the stain disappears. Washing Crystal in the Dishwasher: We do not recommend washing fine crystal or glassware in an automatic dishwasher as overtime crystal may lose brilliance.