When tea is served, teapots and teacups often “grow” a layer of brown-red rust that is not easy to wash off after being used for a while. What is tea rust? Where did it come from? How to remove the tea stain in the cup? How to remove tea rust?
1. Milk deodorization method
First use detergent to wash clean, then pour two soup key fresh milk into the plastic cup, cover, shake, make every corner of the cup contact with the milk, about one minute, finally pour the milk, the cup wash clean.
2, orange peel flavor removal method
Wash and clean with detergent first, then put fresh orange peel in, cover and rinse for about 3 to 4 hours.
3. Use toothpaste to remove rust
It is not difficult to remove the tea rust, you just pour the water in the tea pot, squeeze a piece of toothpaste with an old toothbrush, and wipe the tea pot and the tea cup back and forth, because the toothpaste has both stain remover and a very fine friction agent, it is easy to wipe the tea rust without damaging the cup. After brushing and rinsing with water, the teapot and teacup will become bright as new again.
4. Replace plastic cups
If the above methods can not remove the odor of the plastic cup, and the hot water is the cup emits a strong irritating breath, think about not using this cup to drink water, the plastic material of the cup may not be good, drinking water with it may be harmful to health, so give it up and change the cup to control the insurance.
Related: Why does tea rust occur
When you put the tea leaves into the teapot, burst into the Buddha boiling water, and wait for a moment, a pot of fragrant and delicious tea will be ready. Perhaps you did not think that there are dozens of chemical factors that gradually dissolve into the water from the tea! For example, tannin is what makes tea astringent, and volatile oil is what gives tea its special fragrance. Coffee and theophylline that drink tea can excite and diuretic; Green tea appears green because it contains chlorophyll, while black tea appears red because of theaflavins and other pigments. In addition, tea also contains several vitamins, sugars, and a variety of inorganic salts. And make teapots, teacups of tea rust, mainly tannin magic. Tannin is a kind of large phenolic organic compounds, can dissolve in water, rare is boiling water. When you eat less ripe persimmon, the tongue is often astringent and tingling, which is the tannin playing tricks on you. Tannin is found in immature fruits, rhombus, lotus root and many Chinese herbs. Although the tannins of the spring are different, their chemical structure is not exactly the same, and the taste is also different. Tea tannin taste first astringent after sweet, many people are curious to browse this taste! Tannin is a character is not very leisure guy, when it and the oxygen in the air “meet”, it will be enthusiastic and oxygen partner, pull oxygen atoms into their own body, so that they oxidize and become dark, so that the color is always gradually darker after the tea is placed. In addition, chemical changes such as condensation and dehydration will also occur between tannin molecules, making their “seeds” bigger. They are born with a compound called tanning anhydride, which is a red or brown substance that is insoluble in water. When it gradually precipitates out of tea leaves, it always likes to attach to the inner wall of tea POTS and teacup. See teapot and tea cup “long” a layer of brown red rust.
Tea rust cup tannin
