Can stainless steel hold tea?

Many people like to use stainless steel thermos bottle to make tea, which lasts a long time and is convenient and fast. Is this healthy?

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Can stainless steel thermos bottles make tea?

Although stainless steel thermos bottles do not produce toxins that affect the human body, it is recommended that you do not use stainless steel thermos bottles to make tea, especially stainless steel thermos bottles. Tea contains a lot of tannic acid, theophylline, aromatic oil and various vitamins. It is only suitable to brew with water of about 80 degrees. If you use a thermos bottle to make tea, soak the tea in high temperature and constant temperature water for a long time, just like using warm fire to decoct, the vitamins in tea are destroyed, aromatic oil is volatilized, and tannic acid and theophylline are leached in large quantities, which not only reduces the nutritive value of tea, but also makes tea juice fragrance free, bitter and astringent, and more harmful substances. Tea immersion time is too long, tea may also release heavy metals, harmful to health.

In addition to stainless steel thermos bottles, there are many tea sets suitable for tea making. For example, glass tea sets, porcelain tea sets and so on, are more people choose tea sets. Green tea is best brewed in glass without lid, which will not affect the taste of tea.

Is making tea in stainless steel thermos bottles harmful to human health?

Is making tea in stainless steel thermos bottles harmful to human health? It has been rumored that tea made from stainless steel thermos bottles will corrode stainless steel, leading to the dissolution of some harmful substances, chromium, thus affecting human health. In fact, according to experts, under normal use, the amount of chromium in stainless steel appliances in line with national standards is very small, which will not affect human health. Only under certain conditions can stainless steel be corroded and lead to partial chromium leaching.

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The stainless steel thermos bottle manufactured according to the national standard, in order to protect human health, its chromium content has a strict standard, not more than 0.4 mg/m2. Tea water is only very weak acidic and has much less corrosive effect on stainless steel. To migrate 0.4 mg of chromium, it needs at least 10 days of continuous boiling soaking. In addition, the corrosion resistance of stainless steel mainly depends on the content of chromium. In atmosphere or oxidation environment, chromium can spontaneously form a thin passivation film to prevent further oxidation and corrosion. In life, tea will not boil in stainless steel thermos bottles for 30 minutes. Considering the factors of passivation film, the actual reaction rate will be slower. Therefore, as long as the stainless steel thermos bottles are in line with the standard products, do not put too long a cup of tea, do not worry about the dissolution of chromium exceeded the standard.

How to Choose Stainless Steel thermos bottle?

1. Recommend 304 stainless steel thermos bottle.

Now there are many manufacturers of stainless steel thermos bottles, and their quality is very different. So how can we choose a good stainless steel thermos bottle? Choosing stainless steel thermos bottles depends first on the material. Regular manufacturers generally use 304 (i.e. 18-8), 430 (i.e. 18-0) and 420 (i.e. 13-0) stainless steel. When choosing stainless steel, pay attention to the codes "13-0", "18-0", "18-8". The number in front of the code represents the chromium content, while the number behind the code represents the nickel content, such as "13-0" that contains 13% chromium, and does not contain nickel. Chromium is the material that keeps the product rusty, while nickel is the corrosion resistant material. It is recommended that 304 stainless steel thermos water bottles be selected for rust resistance and corrosion resistance.

I am another who has been disappointed in teas in thermoses. You make mint tea once, and every tea thereafter will taste like mint. It takes days and days of soaking that plastic ring to get rid of most of the flavor. and the moment you put in another tea, you have to spend a few more days getting rid of that new flavor. I just don&#;t feel like it&#;s worth it anymore. I used to spend a good deal of time working where there was no access to hot water, but no longer! I have a desk and water cooler that dispenses hot water now. I can last the one hour commute without hot tea. Once I get to work, I open my drawer, select something from my work stash and brew myself a cup.

My present boss is highly amused by my looseleaf antics. I&#;ve been using paper filters, but I just ordered a mug + filter so I&#;ll be less wasteful. :) Plus, I won&#;t feel rushed to drink up my tea before it becomes over brewed because I&#;ll actually be able to take the leaves out of the water. I feel so lucky. :)

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