Include me out

I was reading something about caffeine content in coffee house offerings, and I found the amounts on offer interesting. Espresso is just 30 ml, which is about one mouthful. Hardly worth dirtying a cup for.
    The other ones seem to come in 350 ml helpings. A mugful, the amount I usually have, is 250 ml. So that’s 100 ml too much. I am now certain that not visiting coffee joints is a wise move.