Is it okay to use a stainless steel cup to make tea?

Many people in life have the habit of drinking tea, but everyone's tea drinking preferences are different. Some people are particularly particular about drinking tea, but many people drink tea more casually. What cup should be chosen to make tea? This is a problem that people often struggle with. There are various kinds of tea cups on the market, such as glass tea cups, stainless steel tea cups, etc., so is it a good idea to use a stainless steel tea cup to make tea?

Is it okay to use a stainless steel cup to make tea?

1. It is good to use stainless steel water cups for a long time. They are safe, shatter-resistant and have very good heat preservation effect.

2. Stainless steel thermos is not toxic if it is used simply to drink boiled water. Remember, try not to use this cup to make tea or drink milk, soy milk and other substances.

3. If it is 304 or 316 stainless steel, it is non-toxic. If it is 201 or 202 stainless steel, it is harmful to the human body, because 201 and 202 are very likely to produce iron oxide, that is, rust, when they are in the water environment for a long time, which will have toxic side effects on the human liver.

4. Stainless steel cups themselves are non-toxic, but their inner surface is rough and easily accumulates tea stains, scale and other dirt, so be sure to clean them frequently.

5. Stainless steel is a "slightly toxic" material, and using general stainless steel tableware will have little effect on the human body. But as drinking cups, porcelain cups and glass cups are the most hygienic and safest. The former is durable while the latter is fragile, each has its own advantages and disadvantages.

Can a stainless steel cup be used to brew tea?

1. Stainless steel cups are not suitable for making tea.

2. Stainless steel water cups contain chromium, which is a heavy metal. The corroded stainless steel water cups will release chromium because the protective film is destroyed. If used continuously, it will cause harm to the human body. According to experts, chromium is a bluish-white polyvalent metal element, the most common ones are divalent chromium, trivalent chromium and hexavalent chromium. It is hard and brittle, and resistant to corrosion, so it is often used in stainless steel and other products.

3. If the human body consumes large amounts of trivalent chromium for a long time, it will affect the body's antioxidant system and make it easy to get some chronic oxidative diseases, such as diabetes and hypertension. In addition, since the antioxidant system is damaged, abnormal proliferative diseases such as tumors are prone to occur. Compared with trivalent chromium, hexavalent chromium is more toxic, about 100 times more toxic than trivalent chromium. Clinically, the harm of hexavalent chromium and its compounds to the human body usually manifests itself in three aspects. First, it damages the skin, causing dermatitis, pharyngitis, etc.; second, it damages the respiratory system, causing pneumonia, bronchitis and other diseases; third, it damages the digestive system. Accidental ingestion or even long-term contact with chromates can easily cause gastritis, gastric ulcers and intestinal ulcers. Excessive intake of hexavalent chromium can lead to severe kidney failure and even cancer.