The unqualified Liling red porcelain cup is easy to burst when soaked in boiling water, especially when soaked in boiling water for the first time. Liling, a national functional department, has a special testing department to regularly test the thermal reaction of Liling purple sand cups, that is, a batch of purple sand cups are heated to 180 degrees and then put into a water temperature of 20 degrees. If this batch of red porcelain cups doesn't explode, it is qualified, so the red porcelain cups won't explode when soaked in boiling water, because the boiling water is only 100 degrees at most. If there is, the red porcelain cup will burst when it is soaked in boiling water, which will not only lose money, but also be in danger of scalding, so you must buy an authentic and qualified Liling red porcelain cup.

The red glaze pigment made of red porcelain cup contains certain harmful substances. Whether it is still harmful after high-temperature firing must be tested by the state functional departments before it can be used. Liling, a national functional department, has a special testing station to regularly test the red porcelain factory in Liling. The state requires that the content of lead and cadmium should not exceed 0.5%, which will endanger people's health.

Never buy red porcelain cup products without safety and health guarantee and national inspection certificate.

Want to buy Liling red porcelain cups, find Liling Dacheng Porcelain Co., Ltd., and soak them in boiling water, which is safe, healthy and nontoxic. Liling purple sand cup products have the certificate of the national testing department. Ex-factory price of Zisha General Cup 128 yuan, and Zisha Daxie Cup 160 yuan. There are quality guarantee, safety guarantee, health guarantee, patent guarantee and after-sales service guarantee.