-Not suitable for long-term storage of food as a container. -Do not sterilize the lid, cup body, or straw by boiling in hot water to prevent deformation of the lid and water leakage, rendering the product unusable. -Due to the good air tightness of the cup, it is recommended to fill the cup with beverages below 50 degrees Celsius to avoid suction burns and hot water splashing. -Before use, check whether the sealing ring inside the lid is correctly installed to avoid water leakage and burns. -When carrying it with you, make sure the lid is tightly closed to prevent leakage. -Do not place the product near open flames or in high-temperature environments (such as microwaves, sterilizers, etc.). -Do not fill with carbonated beverages to prevent the beverage from spraying out due to high internal pressure or the lid from popping off. -Keep unused parts out of reach of children.