&#;. Can a stainless steel thermal flask be used to make tea?

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Yes. Regarding this issue, the media has paid great attention to it before and done some experiments: use a brand-new stainless steel thermal flask, soak tea in it, close the lid tightly and let it stand for 72 hours. As a result, the flask has "corrosion" phenomenon. After testing, the main ingredient is tea dirt. The metal cup wall is not corroded in a short time, but the long-term accumulation of tea dirt is easy to harm the human body.

&#;. Will there be any change in the taste of tea when it is made in a stainless steel thermal flask?

Yes. After experiments, the tea was made respectively in a stainless steel thermal flask and a common glass. After a period of time, the taste of the tea soup did have a lot of differences.

1. Taste

In contrast, the stainless steel thermal flask keeps the water at a high temperature for a long time, so that the tea leaves are soaked in water with a high and constant temperature for a long time, just like decocting something with a slow fire. As a result, a lot of vitamins in the tea are destroyed and the aromatic oil is volatile, and there is the leaching of tannins and theophylline in large quantities, which not only reduce the nutritional value of tea, but also make the tea juice unscented and the tea taste bitter. Even because of the long steeping time, the tea leaf may release heavy metal substances, which is harmful to health.

2. Smell

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After making the comparison, I also asked the friends around to taste it. Everyone said that in terms of smell, the tea soup made from the stainless steel thermal flask was not as fragrant as the tea soup in the glass. It was speculated that this should also be related to the high temperature in the stainless steel thermal flask.

After doing the experiment, we feel that how to make tea is also a very complicated science.

The last thing to note is that the stainless steel thermal flask should also be cleaned in time!

The relatively humid and warm environment in the stainless steel thermal flask and the ravines in the shape will also create a good living environment for bacteria, so timely cleaning is very important!

Thermos good for carrying already made tea...?

I saw a lot of topics on thermos/tumblers on here&#; but I want to make my tea in the morning and be able to get to it later in the day. Could I do this in anything? Even a SIG stainless steel bottle? Something like that? Or would the tea mess up a bottle like that? I don&#;t have access/time to make the tea when on campus at school but if I could still have some already made that I can drink half way through my day I would be so happy. It doesn&#;t have to stay hot. I always cool my tea (post-brew) because my mouth is sadly very sensitive to hot temperatures of any sort. Any reccomendations would be great. I&#;m brand new here but am stoked about finding this site. I am working my way through the two adagio green tea sample packs right now. :)

I did see the topic from a couple months back about tea thermos/tumblers but it didn&#;t seem to reach a decisive answer. That&#;s why I brought the topic back up except that I&#;m only interested in transporting my already brewed tea throughout the day.

I did see the topic from a couple months back about tea thermos/tumblers but it didn&#;t seem to reach a decisive answer. That&#;s why I brought the topic back up except that I&#;m only interested in transporting my already brewed tea throughout the day.

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