Select a mild cleaning agent for your homemade jewelry cleaner recipe. Dish soap with grease-cutting properties can be used, but skip dish soap with harsh anti-bacterial properties as this can strip the finish off jewelry surfaces. Dish soap is a good idea for semi-precious stones with softer surfaces or those that have been chemically treated by the jewelry designer, such as amber and turquoise.
If the jewelry is very dirty or very tarnished – like silver or gold – then you may need to repeat the process so just add a little more baking soda and more boiling water – but make sure it’s boiling, that’s key! You can also use a toothbrush to get in all the nooks and crannies of detailed jewelry. Be careful with precious gems, stones and metals.