Residue At The Bottom of My Teacup

[longtea]

Everytime I brew a cup of green tea using my Teavana IngenuiTEA lookalike I see a very fine residue at the bottom of my teacup. It is a very small amount, like a tiny bit of very fine sand at the bottom of my cup. Usually a black or brown color. I am assuming this is some kind of residue from the tea leaf that makes it through the strainer.

Can anyone confirm this?

What is it?

Is it bad to drink it?

[Warden Andy]

It's from the leaves, and is nothing bad. It actually can add a bit more flavor to the tea if you shake it up.