Tea scales contain heavy metals that are harmful to health?

Three methods to effectively reduce tea scale

Tea scales contain heavy metals that are harmful to health?
Three methods to effectively reduce tea scale

If you drink tea, you will notice the cup, the dark brown tea stain that is easy to leave on the wall of the teapot.

But there are rumors that there are a lot of heavy metals in the tea scale, as well as nitrite. If it is not washed, it may endanger health. There is even the expression of “drinking tea without washing the cup, and smashing the king.”

What is the scale of tea?

Will it be harmful to health?

Tea stain is the main component of tea scale produced by oxidation of tea polyphenols is tea polyphenols, and a small amount of metal ions are also involved in the formation of tea scale.

Because green tea has more polyphenols, it is easier to form tea scale, and black tea with less fermented black tea will have less tea stain.

Of course, the tea scale ingredients formed by different types of tea are basically similar.

Tea stain is a polymer produced by the oxidation of tea polyphenols by air, and thus is mainly formed in the vicinity of the water line and adheres to the inner wall of the container.

Studies have shown that the elongation of the conversion time, the molecular weight of the polymer in the tea scale gradually increases, which means that the polymerization of polyphenols is still slowly.

Therefore, the longer the tea stain is, the less likely it is to be removed.

Heavy metal is not the main metal element in tea stains. The surface of tea soup with overnight tea often has a layer of “oil film” with metallic luster. It is easy to mistakenly think that there is some kind of heavy metal.

In fact, elemental analysis shows that most of the carbon and oxygen elements of tea scale, from polyphenolic polymers, also have a small amount of potassium, calcium, magnesium, aluminum, zinc, selenium and other elements.

The metal element is mainly present in the form of a carbonate or hydroxide which does not degrade water, wherein the calcium element is a major contributing factor to the formation of tea scale, mainly from the water of the tea.

Heavy metal impurities such as lead, arsenic, cadmium, and mercury are not the main metal elements of tea scale, so don’t worry when drinking tea.

Three methods are effective in reducing tea scale. What if you want to reduce tea stains?

1, drinking tea in time to clean, this is the most effective method.

2, put a slice of lemon when making tea can reduce the formation of tea scale.

Studies abroad have found that the amount of tea stains formed by brewing a bag of British black tea is more than that of two bags at a time. The five bags at one time do not form tea scale. This is probably because the polyphenol in the tea makes the pH value of the tea soup.decline.

Another research result is to add a small amount of citric acid to the tea bag to adjust the taste and also reduce the tea scale.

3, the more water the “hard” tea scale, if you use tap water to make tea, you can boil the water thoroughly and cook for a few minutes. The calcium and magnesium will form calcium carbonate, and the content in the water will be reduced accordingly.It will also be softer.

4, the amount of tea scale is mainly determined by the area of the tea soup and air contact, so the amount of tea scale formed by the large mouth cup will be more, the cup lid can also reduce the formation of tea scale.

Related recommendations: Drinking tea can prevent cancer but not necessarily you choose the right one and drink right, otherwise it may cause cancer to produce toxins, which will cause cancer.

In the end, it is really fake liver and liver protection, drink these 6 kinds of tea!

Too bad for people with bad liver!