Tips For Keeping Your Thermos Flask

1. Preheat the Thermos Flask

Before using the thermos flask, preheat or pre-cool the inside with hot or ice water to reach the desired temperature range. This effectively improves its heat retention.

2. Keep it Dry

After using the thermos flask, promptly empty the water to keep the inside dry. This prevents mold and odors and also improves heat retention.

3. Clean Regularly

After using the thermos flask for a period of time, it should be cleaned regularly. You can use baking soda or vinegar water to clean it and remove dirt and odors.