1. Keep the thermos cup dry when not in use for a long time.
2. In order to prevent the generation of peculiar smell and stains, please clean and dry after use.
3. Since the use of dirty water will leave red spots similar to rust, it can be soaked in warm water and diluted vinegar for 30 minutes and then cleaned.
4. Please use a soft cloth dipped in a neutral detergent and a moistened sponge to wipe the surface of the product. The product must be cleaned after each use.