1. Avoid strong thermal shock:
　　 1. Wait for the temperature of the glass to be the same as the room temperature. The thicker and heavier the glass, the longer the heating time will be， glasscookware .
　　2. The temperature should be gradually increased when heating, so that the glass can adapt to the temperature difference
　　3. For glass with different thicknesses, the tension generated during the heating process will be different, which will cause the glass to break
　　4. Uneven heating during microwave heating may also cause glass to break
 
　　 2. Avoid collision and impact:
　　1. Avoid contacting the glass with the bottle
　　2, water that cannot be used
　　3, the glass must not touch each other
　　 4. Don't pile and chop glasses randomly
　　 5. Don't stack the glasses
　　 6. Do not put the tableware in the glass
 
　　 3. Correct use and function description
　　 1. Before adding ice cubes, pour water or dumplings into the cup
　　2, do not use the wine glass to hold juice, soft drinks, etc., because the sugar layer remaining on the inner wall of the glass will affect the formation of the wine bubble
　　3. Do not place the glass containing hot drinks on a cold metal surface
　　4. Use glasses for cold drinks to hold cold dumplings, and glasses for hot drinks to hold hot drinks
　　 5. Hold the bottom or neck of the glass, don’t hold the edge of the glass
　　6. ​​Choose the right glass for each different drink to ensure that the concentration, appearance and taste of the product are in the best state
　　7. Don’t cut too many glasses on the tray, and don’t hold too many glasses at once to prevent accidents
 
　　 Four, the correct way of hand washing:
　　1, please wash as soon as possible after the idle
　　2. Use non-abrasive cleaning tools, such as nylon cloth or sponge, to wipe in warm water
　　3. Hold the cup belly, and be careful to twist the cup neck and cup belly in different directions during the cleaning or drying process
　　4. Put a rag pad or rubber pad on the bottom of the sink, which will help prevent damage to the glass
　　 5. For crystal glass, warm water rinsing has the best effect
　　 6. Metal magic ball, micro stainless steel ball can remove all dirt, residue, sediment and stains in the wine container
 
　　 5. How to make glass as bright as new
　　 1. Fill the sink with hot water and add two cups of vinegar. Cut the glass in and soak for 1 hour. The turbidity on the wall of the cup will be removed. Using undiluted vinegar can remove the turbidity faster and make the glass bright as new
 
　　 Six, the water quality is too hard:
　　 1. In general, the excessively hard water quality is caused by alkali elements and compounds, such as lime, calcium, etc., which will cause glass turbidity. The only way to eliminate alkali compounds is to use acidic substances.
　　2. The lime scale in the water will block the water outlet of the dishwasher and deposit on the surface of the heating element, which reduces the washing effect. The way to ensure soft water quality is to replenish the reservoir with refined salt regularly
 
　　 Seven, chemical reaction:
　　 This is a reaction formed by the combination of oxides generated by the air humidity and the oxides in the glass. Therefore, a thin film is formed on the surface of the glass
　　 "Hot-cut" cup rim is a delicate and durable curled edge, which can be seen on general goblet and straight cup
　　"Cold-cut" cup rim uses laser processing to make the cup rim more detailed and beautiful. It can be seen on high-level goblets and cold drink cups.