Keeping tea in a stainless steel thermos, is it OK and how long?

27 Replies
wawalt said

I am very happy to have found this discussion.
My “tea in the thermos”-problem is making me crazy!!!
I have a new stainless steel thermos with a plastic and rubber cap. After 2 or 3 weeks my tea (green) tasted like coffee….
I washed with soap, vinegar, lemon juice,…. to no use!!

I really would like to find a way to keep my tea hot for 5-6 hours.

TOMMMMMM said

You aren’t drinking out of the cap are you?

wawalt said

No, I drink the tea out of a glass.
Anyway, my problem is solved (see my recent post)

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VeryPisces said

I used to put tea in a thermos but didn’t want to have to worry about properly cleaning it out (including the mechanism for the vacuum lid). I forgot to clean out the flask one weekend and got a nightmarish greeting from the contents when I opened the thermos a few days later. Now I prefer to use thermoses for the hot water only. I never pre-make the tea. As a former college student, though, I know that drinking pre-made tea is the easiest way to go. The next best might be teaballs. I have made teaballs ahead of time and just put them in a ziplock bag between steepings.

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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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VeryPisces said

I’m in a similar position, mercuryhime. I put boiling hot water in a thermos and drink tea until lunch time, then I use the hot water line from the coffeemaker to refill the thermos and use that for teas the rest of the day. I use either teaballs or teabags to transport my looseleaf teas to work.

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wawalt said

I found a reasonablel solution to my problem.
When I fill the thermos with “hot but not boiling” water, the tea doesn’t change its taste anymore!!! I just let the boiling water cool down in the waterheater for 5 minutes, before putting it in the thermos. My tea still stays hot for a few hours and doesn’t taste like coffee anymore.
The colour of the tea still gets a little bit darker after a while, but the taste is OK.
Of course, every 2-3 days I wash the thermos with some vinegar or lemon juice to keep the interior spotless.

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