Thermos Needs Cleaning
Boiling water and baking powder. Fill with boiling water, add a teaspoon baking powder. It goes all fizzy and when it stops being fizzy, pour out and wash up normally. It doesn’t magically remove all tea stains without a trace, but it lifts them from the surface of the vessel so that they’re easily washed off. If it’s really bad, repeat this process a few times.
Give it a treatment for limescale as well. I tend to go with boiling water and a mild acid there. Wash and rinse well before use.
There is a solution that is easy and works perfectly. I had a well stained thermos too and needed to clean the interior. I bought Smart Soak from www.shopmandalatea.com and used that. It worked completely.
Thank you, Allan! The stuff is a little bit of a miracle in a sometimes seemingly not-so-miracle-ridden life, isn’t it?
I am trying an experiment with smart soak. I have an empty tea tin that contained a reasonably aromatic flavored tea that left behind an odor. I am leaving it overnight in smart soak to see if it gets out the odor.
I agree with the Smart Soak, but OxiClean+boiling water also works really well to clean organic stains off stuff, including tea stains. (Credit to CleanMySpace)
Mandala’s cleaning solution is the BEST! It will get rid of those stains.