1, glazed jar has smooth surface and glass luster, which makes it more difficult to penetrate wine and easier to clean, while unglazed jar is not easy to clean.
2. Glazed jar has a good aging effect on wine storage, and its microstructure is porous, which is beneficial to the activity of enzymes in wine storage, thus maintaining the continuous aging of wine and improving the quality of wine, while unglazed jar is easy to leak and not suitable for long-term storage.