Clean the Bottle with detergent for dishes and dry it before use. It’s normal for some slight smell when used for the first time. Fill in the drink without exceeding the empty space of 2-3cm from the top and then screw the lid. Caution: Do not put the bottle into the freezer of fridge, Do not heat it in the microwave Ovens, or disinfection cabinets. Keep the bottle away from high-temperature heat sources. Never heat on fire directly.