1. Can the moo cup keep warm? A: The water cup has no heat preservation function. But within 2 hours, it can delay the temperature drop. 2. What is the temperature range that the moo cup can withstand? A: The water cup can withstand temperatures in the range of -30 ° C - 150 ° C. 3. Does the moo cup have an anti-scalding function? A: No. It is recommended to keep the water temperature at around 60 °C to prevent burns. 4. Can the moo cup be frozen? A: The cup can withstand a minimum temperature of -30 ° C and can be frozen. It is not recommended to freeze after filling with water, otherwise the swelling of the ice may damage the cup. 5. Can the moo cup be heated in a microwave oven? A: No. The cup mouth is made of metal and can cause damage when heated. 6, moo cup can achieve several volume changes? A: The water cup can only change two volume states: full stretch and full compression. Do not stay in the middle. 7. Why does the cup have a taste when used for the first time? Does it affect the safe use? A: The moo cup is a food grade silicone product. These silicone products have a taste after they leave the factory. Most of the silicone baby products on the market will also be made of food grade silicone, which will also taste when first used. But this does not affect the safety and normal use of the product. Before using for the first time, you can eliminate the odor by boiling boiled 1-2 times with boiling water.