From your question mark, I answered by arranging, hoping to help you:

1. There are many kinds of ceramics. If it is white porcelain, the outermost layer is transparent glaze. If it is edible utensils, the main components are kaolin, feldspar, metal oxides, etc. All these substances come from the earth's soil. If illegal merchants add lead for brightness, the lead content will exceed the standard. If it is a regular manufacturer, there will be a very small amount of lead, which is always inevitable. The country has strict requirements on the content of lead (because eating too much lead will cause poisoning, especially for children), and Europe and the United States have stricter specifications on the lead content in ceramics. California 65 is a bill passed by the United States specifically for the lead and cadmium content. As far as I know, the pure white series products of jadeite ceramics in China have passed the California 65 test. Personally, I think it's best not to choose the products with flowers. You just need to see if European and American countries have imported over-the-glaze decals (yes, very few) in China. . Haha

2. Actually, there are almost the same problems between glass and ceramics. Not to mention those produced by illegal merchants, the main component of glass is silicon dioxide, and those produced by qualified merchants also have trace amounts of lead, depending on who has less.

So, my personal opinion is that in this era, we need more minds and more basic knowledge. The safety factor of choosing high white and pure white ceramics is higher.