? Cu?ntos a?os tiene este caf? ?

I often boast of my prowess as a polyglot and of the facility with which I can express myself in different languages. Obviously there are certain idiomatic expressions that have to be either learned or heard. I made a very amusing faux-pas at the roach coach.
I poured myself a cup of their low-grade coffee into a small styrofoam cup. Needless to say, nothing good was to come of this. I took the initial sip and made a face. I then asked in Spanish, "? Cu?ntos a?os tiene este caf? ?"
The roach coach roared.
? Hace cu?nto tiempo que prepararon el caf? ? would have been the appropriate inquisition.
So much for fluency.