I'd like to thank everyone for their input. I'm sorry for not getting back to you all sooner but it was a very hectic and stressful time requiring my attention on several fronts.
One of the guests had owned and run coffee shops and small restaurants in the past. I bought the coffee, fresh ground and recently roasted, from the nearby Peet's shop and handed the package to our restaurateur guest with the simple instruction to "make some coffee". At the end of the day, anyone who wanted coffee got some.
So, thanks again!