The healthiest cup to drink
Glass is regarded as the foremost recommended material to make cup. Not only because it appears transparent and glittering, but also the healthiest material. The process of firing glass does not contain organic chemicals, so there is nothing to worry when you use glass to drink. Furthermore, the smooth surface of glass makes it easy to clean, It's not easy to breed bacteria and dirt. So it is the safest and healthiest to drink with glass.