How To Remove Odors From A Thermos Flask

To remove odors from the water in a thermos flask and keep it clean, the first recommended method is to use a mixture of white vinegar and water (approximately 1:5 ratio). Shake for a few minutes and then rinse. This method has both deodorizing and sterilizing effects. Secondly, steeping tea leaves is also a good option, using the natural aroma of tea to mask odors. Additionally, citrus peels such as lemon and orange peels can also provide a refreshing effect; simply place the peels and water in the flask for several hours. For a stronger deodorizing effect, try soaking the flask in warm baking soda water for half an hour. For stubborn odors, a special treatment method using a mixture of dish soap and boiling water is recommended, but be sure to rinse thoroughly. For daily maintenance, clean the flask promptly after use to avoid prolonged water storage; disinfect regularly to maintain hygiene; avoid using metal tools when cleaning to prevent damage to the flask body; remember to open the lid when heating to prevent pressure buildup; if the flask is not in use for an extended period, drain the water and allow it to air dry.