What were the methods to prevent the oxidation of gold and silver in ancient China?

1, human body oil can form a thin protective film, which makes it glow naturally, so it is also a good maintenance method to wear silver jewelry often.

2. Try to avoid collision and friction with hard objects when wearing silver jewelry. Avoid contact with any chemicals, and don't wear them for bathing, sleeping and various sports activities.

3. After each wear, gently wipe the surface with cotton cloth or tissue paper. If you don't wear it for a long time, please seal it after cleaning to avoid contact with air.

4. Don't expose them to hot springs, seawater and other environments that may contain sulfur.

5. When the silver jewelry is seriously oxidized and blackened, it can be soaked in silver washing water, and the soaking time is generally best not to exceed 15 seconds. Immediately after taking it out, wash it with clear water, and then dry it with cotton cloth (or blow dry it with a hair dryer).