differentiate
The biggest difference between glazed cups and glasses is sound quality, transparency and feel. Glasses are glazed cups with lead, and some ingredients contain lead, so people who pay more attention to health now generally buy lead-free cups as drinking utensils.
Both glass and coloured glaze contain silicon factor, but the situation is different. Neither glass nor coloured glaze is crystal. The difference between glass and colored glaze is only process appraisal, which is probably color. Glass will not be made into colorful appearance like colored glaze, and its shape will not be as complicated as colored glaze.