(1) Avoid strong thermal shock
1. Wait for the temperature of the glassware to be consistent with the room temperature. The thicker and heavier the glass, the longer the heating time is required;
2. When heating, the temperature should be raised gradually so that the glass can adapt to the temperature difference;
3. For glass with different thickness, different tensions will be generated during the heating process, which will cause the glass to break;
4. Due to uneven heating when heated in a microwave oven, the glass may also break.
(2) Avoid collision impact
1. Avoid the cup touching the wine bottle;
2. It cannot be used to fetch water;
3. The glass cannot touch each other;
4. Do not pile up the utensils at will;
5. Do not stack the glasses;
6. Do not put tableware in glassware.
(3) How to make the glass bright as new
Fill the sink with hot water and add two cups of vinegar, put the glassware in, soak for 1 hour, the turbidity on the cup wall will be removed, use undiluted vinegar, it can get rid of the turbidity faster, and make the glass as bright as new .