The difference between these two materials:
1, ceramic liner: dense texture, smooth surface, antibacterial and non-sticky, good heat conduction effect, acid and alkali resistance, high temperature resistance, no odor and easy cleaning.
2, purple sand liner: good thermal insulation, energy saving, healthy and easy to clean.
In fact, these two materials are very good, but because Yixing purple sand is almost used up, the so-called purple sand liner on the market is actually made of ordinary loess and some chemical raw materials. Adding alumina will form ice and fire of 1000 degrees, which is very unhealthy for human body.