1. Before using new products, you must use boiling water or food detergent for multiple times of high temperature sterilization.

2. Please use boiling water (or cold water) for preheating (or precooling) for 5-10 minutes before use to achieve better thermal insulation effect.

3. The amount of water is moderate, so as not to tighten the cover, the water overflows and burns.

4. When drinking hot drinks, please drink slowly to avoid burns.

5. It is not suitable to keep milk products and fruit carbonated drinks for a long time.

6. Please tighten the lid after drinking to ensure cleanliness.

7. Do not use alkaline bleach, chemical wipes, etc.

8. Sometimes the stainless steel cup will contain some rust and other substances and produce some red rust spots. You can add warm water, add a little vinegar for 30 minutes, and then fully clean.

9. To prevent the glass from smelling or staining, it should be cleaned frequently.