【Instructions】: 1. Clean the cup and parts with neutral detergent before use. 2. When using, preheat (pre-cool) the bottle with hot water (ice water), the effect of heat preservation (cool preservation) will be better. 3. After boiled water and tea are poured into the cup, tighten the lid clockwise to prevent leakage. 4. When boiling into boiling water or other beverages, it should not be too full to avoid scalding or other things caused by boiling water or spilled water when tightening the lid.    【cleaning method】: 1. Every part must be cleaned after each use 2. Please wash with mild neutral detergent, do not use bleach or chlorine detergent to avoid damage to the product. 3. Clean the surface of the cup, use a soft cloth dampened with warm water, and wipe with a diluted detergent. Never use bleach, gasoline, metal abrasives and metal balls to wipe the cup 4. When cleaning the liner, wipe it with a soft sponge, cloth, soft brush, and keep the liner dry after wiping.    【Precautions】: 1. Please avoid impact and falling, so as not to break the cup body and affect the thermal insulation performance. 2. Do not place it next to the heat source to avoid affecting the function. 3. Keep out of reach of children to avoid burns 4. Do not put the cup directly into the microwave to heat it. 5. Do not add liquids such as dry ice or carbonated beverages that are prone to high pressure. Do not add liquids containing salty adults such as soy sauce or soup to avoid corrosion of the kettle body. 6. After loading a perishable beverage such as milk, please drink it as soon as possible and clean it to avoid decaying the rotted liner.