I drink quite a lot of green tea, several mugs a day, and usually they've gone cold before I manage to finish them.
I've noticed that the inside of the mug is usually in quite a state, stained, bits of who knows what, (tea leaves perhaps?) etc.
Question is, I'm tipping this stuff down my neck so should I be concerned about what it's doing to my stomach lining?
All comments from internet doctors, surgeons etc welcome....