Do not use commercial dip solutions or chemical reduction techniques involving immersion in salts, acids, metal granules, or foils. These products and procedures are not only toxic but can cause disfigurement and pitting of the silver surface. Also, do not wash your plated or sterling silver in the dishwasher. The powerful chemicals present in detergents, as well as treatment solvents in the water supply, can spot or pit silverplate. Glass Decanters, Vases, Bottles, Etc.
Most glass is chemically stable and at risk primarily from careless handling or accidents.
However, in some kinds of glass, ultraviolet light can cause color shifts. Therefore, the degree, duration, and intensity of light falling on your glass artifacts should be controlled. Do not display painted or delicate glass pieces in a sunlit window or any environment that generates heat-alteration of the original colors, abrasion, or flaking of surface elements or decorations could occur. Direct sunlight may also cause a fire. Glass objects should be washed gently with a mild detergent, rinsed, and wiped with a soft cloth.