Is it poisonous to use a glass containing lead?
If you put wine in a leaded decanter and drink it for several weeks, it will affect your health. Because acidic liquids are in contact with leaded cups for a long time, lead will be precipitated. To be on the safe side, it is recommended to use lead-free glass.
Why are hand-blown cups more expensive than machine-made cups?
Every production link of handmade cups is completed by hand, and each cup contains the unique skills and fine craftsmanship of the craftsman. Machine-made cups come from the machine production line, and the output is relatively high. Each one is well-shaped, but it is not as thin and smooth as handmade cups.