How to clean a newly purchased glass:
1. Wine.
Permeate with hot 60 degree Baijiu, and then make strong tea; Put it in a microwave oven, wait for 10 minutes at 400 watts, let it cool naturally, and pour it out within 24 hours; The unpleasant smell of the cup completely disappears and can be cleaned very cleanly.
2. Soaked tea leaves.
Using brewed tea leaves to wipe, the effect is equally significant.
3. Vinegar.
Put the cup into a cold water pot and add some vinegar. It is best to brew vinegar and bring it to a boil over high heat. If the water is not over the cup, add one to two taels of vinegar. Cook until it boils and let it simmer for another twenty minutes. Make sure to cook in cold water. It's best not to buy those brightly colored ceramic products, which contain lead and are contained in pigments.
4. Boil in water.
When boiling with water, use cold water. Just boil it, but do not use cold water when taking it out, especially ordinary glasses that are prone to cracking.