How long does it take drip coffee to become stale/unsafe? (black coffee, no milk, sugar etc)?

Question

At room temperature, it lies in the coffee maker. How long can I let it lie before I have to throw it out?

Answer 1

Well, coffee doesn't become "unsafe", but when left at room temperature it will grow mold around the surface of the coffee.  If you place it in a pitcher in the refrigerator, it will prevent the mold and you can just zap a cup in your microwave for a minute when you want some.  Personally, I kinda like iced coffee, too.

I bought a Tassimo (single-cup) coffee maker so I wouldn't have to do any of that anymore.

Answer 2

about a day tops. It becomes stale long before that.