Silver Pinnafu answers for you!

If it is a regular business, I will provide you with a certificate. If you have a certificate, you can check it on the quality inspection website. If it is pure silver, you can use it with confidence. If you can't find it, you can choose to test it yourself or ask the merchant to provide it to you. Using impure cups for a long time can not only protect health, but also produce toxic substances, which are harmful to health. There are many silverware craftsmen in Lijiang, Dali. If it is not a small workshop, it will not be faked.

I hope I can help you. If you don't understand, please ask.