Japanese-to-English Prestidigitatorでタグ「caffeine」が付けられているもの

I read an article recently that said that tea is supposed to be better for boosting brain performance than coffee, because it gives you a more steady supply of caffeine than coffee, which provides more of a jolt.

Since big translation jobs tend to require sustained concentration, I suppose that tea is the way to go.  But coffee is very delicious.  Maybe if I just sip it...