How Much Coffee for a Party?

Coffee Planning Guide

Coffee math hinges on a quirk of the measuring system: a 12-cup coffee maker is rated in 5-ounce 'cups,' so it actually yields about 10 real mug-sized servings. Plan that most coffee drinkers have one to two cups at a morning event or after dinner. A standard pot therefore covers six to ten people per brew, and you can simply re-brew through a small gathering. Once you are past 30 or so guests, brewing pot after pot stops keeping up and a large coffee urn, which holds 30 to 100 cups, becomes the practical choice.

Always brew both regular and decaf, and weight it toward regular. A safe split is roughly two-thirds regular to one-third decaf at most events, shifting toward more decaf for an evening gathering where guests are winding down. Decaf is easy to forget and frustrating to lack, since the people who need it usually cannot drink anything else, so brew a dedicated batch rather than assuming nobody will ask. Label the two clearly, because they look identical once poured.

Coffee goes cold and bitter sitting on a hot plate, so hold it off the burner. Brew into insulated carafes or an urn that keeps it hot without continuing to cook it, which preserves the flavor far better than a glass pot left on heat. Set up a self-serve station with cream, regular and zero-calorie sweeteners, sugar, and stirrers so guests are not waiting on you. Brew the first batch just before guests arrive rather than long in advance, since even good coffee turns stale within about half an hour of sitting.