How to distinguish the quality of ceramic cups 3

4. Test cover, test installation and test. Some hot ceramic coffee mug have LIDS, and some porcelain consists of several components. When choosing porcelain, don't forget to test the lid and assemble the components to see if they fit. In addition, some porcelain with dripping Guanyin and other special functions, can automatically drip water; Kowloon fair cup, wine poured to a certain position, will all leak. So try it and see if it works.