How to remove tea stains from a thermos cup

China is a major tea-producing country, and the tea drinking culture has a long history. However, after using a thermos cup to make tea for a long time, there will be a lot of tea scale in the thermos cup, and once the tea scale is formed, it will be difficult to remove. Experts also say that if the tea scale in the tea cup is not cleaned for a long time, it will also pose a great threat to health. So how should we remove the tea scale from the thermos cup? Let’s take a look together below!

1. The tea stains on metal tea sets will turn black over time. You can soak them in vinegar for a while and then wash them to remove them.

2. Chop the potatoes and put them into the tea set, then pour in hot water, the water should be higher than the tea scale, and you can wash it directly after the water cools down.

3. Squeeze some toothpaste, add a little water, and then rub it on the tea stains. The tea stains will be easily removed. If they are not completely removed, rub them several times.

4. Crush the eggshell, use water to scrub the tea stains, and they will be removed quickly.

5. Using salt to scrub tea stains is also very effective, and it does not leave any smell.

6. Cut the lemon and rub it directly on the tea stains to remove the tea stains.

The above introduces many methods to remove tea scale from thermos cups, because research shows that there are certain heavy metals in the water we usually drink, so after the water is heated, these substances will soak in the tea cup and oxidize with the air to form tea scale. If these tea scales are not cleaned for a long time, these tea scales will be drunk into your stomach again.