Hello all,

The title migle be confusing, but hear me out.

Thermos travel mugs seem to be very effective at extracting actives out of plants.

In the past SWIM has used it because it stays hot for a very long time.

Inside of it, poppy pod tea was prepared (which SWIM quit for good) with great success, and after that it was used for regular stuff like coffee, tea, and such.

Until yesterday, where SWIM put a mixture of herbal tea together with a cannabis tincture.

This worked incredibly well as assumed, and brought SWIM to the idea that it might work very well for mimosa as well...

Problem is, the thermos travel mug has developed coffee and tea stains which don't appear to get cleaned with soapy water.

His assumption is that it might be a mixture of tannins and plant dust gunk that has hardened.

The mug is made of some kind of metal, assuming stainless steel.

The hole is too small to put the hand inside in order to scrub it clean.

So what could be some green cleaning products that can be used to get rid of the gunk?

SWIM wants to try the can to prepare some mimosa, but since it is so tannic in nature it might be necessary to clean it after each use.

SWIM would prefer to do a gelatine TEK after the mimosa tea is already done, in order to prevent further mess and unexpected results.

Any tips with regular would be helpful.

In the lab we often used Alconox to clean labware. It is an great cleaning agent.

In these instances I add a generous scoop of baking soda (bicarb) and fill the flask with boiling water. Let it soak for a day, overnight at the very least, then attack with a stiff bottle brush (invented cos of small holes vs big hands ). If stains persist, repeat with sodium percarbonate "eco" stain remover - that definitely shifts tannins within an hour or two, so you'll get away with a shorter soak. Beware of oxygen generation with that - don't seal the lid tight!

You may want to consider buying another flask, so you have one for coffee and another for hot water only, which you can use to brew herbal teas with at your destination Except it looks like you'll only be reaching your "destination" after drinking the contents of the flask...

Putting coffee in a flask is a n00b mistake tho I usually travel with a camping stove and an espresso jug (maybe not on the train - the water flask might get a herbal tea exemption for that)

Update:

Alconox is sadly not available where I live, but the cleaning was performed with carbonates. This helped, but only limited. A brush is still nessecery after a (long) soak.

On a side note, mimosa tea didn't quite work. It merely produced thereshold effects which can be described as "going somewhere but not reaching the destination". It was barely noticeable in psychoactive effects, compared with the usual method of a rolling boil which always resulted in overwhelmingly strong effects.

Conclusion: A travel thermos mug, might be effective for some stuff, but not ayahuasca analogues.