For many friends, after buying amber, when asked about cleaning, we all say washing with water. What are the cleaning methods of amber?

Generally, we put amber in a small dish, then scrub it with cotton cloth, and then slowly dry it on cotton cloth.

Many friends who don't know amber sometimes use alcohol or other gases to clean amber. This is unscientific. Alcohol is an organic solvent for cleaning gold and other jewels, but for organic gems such as amber, alcohol should never be used.