1. First of all, you need to determine whether your thermos cup has been used or not. If your thermos cup has not been used, then this is the smell emitted by the plastic parts inside the lid of the thermos cup. Find some broken tea leaves and soak them for a few days, then clean them with detergent. It should be odorless. If it has been used, it is because it has been idle for too long, which is also the reason why the plastic parts have been sealed for too long. It does not require too much processing. If you open the lid and leave it for a few days, the smell will gradually dissipate.
Under normal circumstances, the odor in the thermos cup is because it has been filled with milk. The problem mostly occurs on the rubber ring (plastic part), so after filling the milk, clean the cup and there will be no odor. If it has already appeared Odor can also be removed by soaking plastic parts in soda water or 95% alcohol for 8 hours.
In addition, no matter what kind of beverage the cup has been filled with, there is nothing wrong with using the following methods: wash the cup frequently, soak it with dilute vinegar, and put tea leaves in it. For faster results, you can use toothpaste and a toothbrush, and then don’t wash off the bubbles. Soak the toothpaste bubbles in boiling water and put them in a bottle. The mint flavor in the toothpaste will remove the sour taste.
2. The thermos cup always has a peculiar smell. The main reason is that the thermos cup is not cleaned, causing bacteria to breed and produce peculiar smell. If you want to remove the odor, it is recommended that you wash it carefully after each use. If the odor is really difficult to remove, you can use these methods:Method 1: After cleaning the cup, pour salt water into it, shake the cup a few times, and then let it sit for a few hours. Don’t forget to turn the cup over in the middle so that the salt water can soak the entire cup. Just wash it off at the end.
Method 2: Find tea with a stronger flavor, such as Pu’er tea, fill it with boiling water, let it sit for an hour and then brush it clean.
Method 3: Clean the cup, put lemon or orange in the cup, tighten the lid and leave it for three or four hours, then brush the cup
Just clean it.
Method 4: Brush the cup with toothpaste and then brush it clean.