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For jewelry decorated with porous gems, watches, antiques that have pieces held with glue, or other delicate silver pieces that can’t be immersed in water or cleaned with the electrolysis method, there are still several options for cleaning.  Mix one tablespoon (15 ml) dishwashing soap (something that’s phosphate-free and ammonia-free) with one cup (240 ml) warm water and stir well. If you want, use a hand blender to mix up some suds. Dip a soft cloth into the soapy water and wring out the excess. Use the damp cloth to clean the silver. Rinse out the cloth with plain water, and wipe off any leftover soap residue. Use a fresh cloth to buff and dry the silver. Take a tablespoon (15 g) of baking soda and mix it with just enough water to make a paste. With a soft-bristled toothbrush or cloth, clean the silver with the paste, making sure to get into the nooks and crannies with the bristles. When the silver is clean, rinse it under warm water or remove the excess paste with a damp cloth. Buff it dry with a clean cloth. In a small bowl, whisk together 1 teaspoon (6 ml) lemon juice and 1.5 cups (327 ml) olive oil. Dip a cloth into the mixture, wring out the excess, and use this to polish your silver.  For small pieces that can be immersed, soak them in the oil and lemon solution and place the bowl into a small saucepan. Fill the saucepan with enough water to bring the bowl off the bottom and turn the heat to medium. Bring up the water temperature and keep it hot, but not boiling, for 15 to 20 minutes. Remove the pot from the heat and take the silver out of the oil and lemon juice solution. Gently scrub the silver with a soft toothbrush. For either the hot bath or the polishing method, rinse the silver with hot water to remove excess solution, and dry it with a soft cloth. Glass cleaners like Windex can also be used to clean silver. Spray some glass cleaner directly onto a soft cloth or soft-bristled toothbrush. Use the cloth to clean the silver, and then either rinse the piece under warm water or wipe off the excess cleaner with a damp cloth. Dry and buff the silver with a soft cloth.
Use soap and water. Make a baking soda paste. Use lemon juice and olive oil. Give glass cleaner a try.