How much alcohol for an event, and who is allowed to pour it

Quantities

The working assumption most bartenders use is one drink per guest per hour, with the first hour running heavier — closer to two — and the rate falling after that. For eighty guests over four hours that is roughly 320 drinks, and ordering to about 350 gives you margin without a garage full of leftovers.

Split

A common starting point is 50% wine, 30% beer, 20% spirits, then adjusted for the crowd. A summer afternoon skews to beer and something sparkling; a winter dinner skews to red and spirits.

Wine

5 glasses per 750ml bottle. 80 guests, 4 hours: 30–35 bottles.

Spirits

About 16 drinks per 750ml bottle at 1.5 oz pours.

Mixers and ice

Consistently under-ordered. Budget 1 lb of ice per guest in warm weather, more if you are chilling bottles in it.

Non-alcoholic

Plan for 15–20% of drinks, and make at least one of them something people actually want. A jug of water and a warm cola is not hospitality.

Staffing the bar

One bartender per 50 guests keeps a queue moving for a standing reception; one per 75 is workable if drinks are simple and there is a second service point. Below that, the bar becomes the story of the evening — and a queue at the bar is the single most common complaint we hear about otherwise excellent events.

Two smaller bars at opposite ends of a room almost always outperform one large one, because the queue splits itself and people stop crossing the floor.

Tennessee rules worth knowing early

Serving alcohol in Tennessee is licensed, and the license sits with the venue or with a caterer or bartending service that holds one — not with you. In practice that gives you three arrangements: the venue runs the bar, a licensed bartending service runs it, or you supply the alcohol and a licensed service pours it where the venue permits that.

The third is where the savings are: you buy at retail rather than at event markup, and you pay for labor instead. Expect a corkage or handling fee where a venue allows it, and expect some venues not to allow it at all — it is one of the first questions to ask, because it can be worth thousands on a drinks-heavy event.

Two more points that change plans if you learn them late: last call is set by the venue's license and by local rules, not by your run sheet; and dram-shop liability is a real consideration, which is part of why using a licensed, insured service matters more than saving a few hundred dollars on pouring. We hold insurance status on file for every bartending service we source and state it on the listing.