How Many Cocktail Kegs Do You Need for a Wedding?
Picture this: your wedding reception is in full swing, the dance floor is packed, and someone makes a beeline for the drink station , only to find the keg is empty. The buzz dies. The line builds. The moment is lost.
Getting your drink quantities right is one of the most practical (and most overlooked) parts of wedding planning. And if you're serving batched cocktails on tap , which is one of the smartest, most stylish decisions you can make for your big day , knowing exactly how many kegs you need can be the difference between a legendary night and a logistical nightmare.
This guide breaks it all down with a simple formula, a ready-made table for common guest counts, and everything you need to feel confident walking into your wedding weekend.
Why More Couples Are Choosing Cocktail Kegs at Weddings
The traditional open bar is expensive, labour-intensive, and requires at least one dedicated bartender per 50 guests. A cocktail keg (a pressurised, self-serve stainless steel keg that dispenses pre-batched drinks using carbon dioxide , CO2 , to maintain carbonation and freshness) flips that model entirely.
With a CO2-pressurised cocktail keg, you batch your signature cocktail in advance, load it into the keg, and guests serve themselves from a tap , bar-quality pours, no shaker required, no queue at the bar.
Gloria Keg offers two main sizes built for exactly this kind of entertainment. You can explore the full range on the Gloria Keg shop page:
• Gloria 7L , holds 1.8 gallons / 236 oz / approx. 39 drinks at 6 oz per pour
• Gloria Big G 10L , holds 2.5 gallons / 338 oz / approx. 56 drinks at 6 oz per pour
The Formula: How to Calculate How Many Kegs You Need
Here's the straightforward maths:
Total drinks needed ÷ drinks per keg = number of kegs
To calculate total drinks needed, use this standard wedding planning rule:
First hour: 2 drinks per guest
Each additional hour: 1 drink per guest
So for a 4-hour reception with 100 guests:
Hour 1: 100 × 2 = 200 drinks
Hours 2–4: 100 × 3 = 300 drinks
Total: 500 drinks
At 39 drinks per Gloria 7L: 500 ÷ 39 = ~13 kegs At 56 drinks per Gloria Big G 10L: 500 ÷ 56 = ~9 kegs
Always round up , you never want to run short at a wedding.
Ready-Made Wedding Keg Calculator
Pro tip: If you're serving both an alcoholic and a non-alcoholic (mocktail) option, split your keg count roughly 70/30 in favour of the cocktail , most guests will rotate between both across the evening.
Choosing the Right Keg for Your Wedding Style
Gloria 7L , perfect for intimate weddings (under 75 guests), cocktail hours, or as a second station alongside a traditional bar. Its compact footprint fits elegantly on a decorated table without overwhelming the aesthetic. Check out the Gloria 7L product page for full specs and what's included.
Gloria Big G 10L , the workhorse for larger receptions. Its 500g CO2 (carbon dioxide) cylinder lasts approximately 30 full kegs, meaning you won't be swapping gas cartridges mid-reception. Ideal for events of 100+ guests where volume and uninterrupted flow are the priority.
Not sure which to choose? The Gloria Keg FAQ page covers a full breakdown of both models including dimensions, CO2 usage, and capacity comparisons.
What Cocktails Work Best in a Wedding Keg?
The best wedding batch cocktails are ones that taste incredible, stay carbonated, and are crowd-pleasing enough for mixed groups. Some top picks:
• Sparkling Elderflower Spritz , light, elegant, suits the ceremony vibe
• Classic Margarita , universally loved, holds well in a keg
• Rosé Sangria , romantic, make-ahead friendly, visually stunning
• Champagne Punch , iconic for toasts and receptions
• Cranberry Gin Fizz , a crowd-pleaser that photographs beautifully
For batch recipe inspiration sized to keg capacity, visit the Gloria Keg recipe blog , each recipe is designed with keg-friendly ingredients in mind (no herbs, pulp, or seeds that could clog the ¼-inch pickup tube inside the keg).
Frequently Asked Questions
Q1. Can I prepare the keg cocktails the day before the wedding?
Yes , and it's actually recommended. Gloria Keg maintains carbonation and freshness for up to 3 weeks under CO2 pressure. Batching the night before means one less thing to stress about on your wedding day.
Q2. Do I need a professional bartender to operate a cocktail keg at a wedding? No. That's the whole point. Gloria Kegs are designed for self-serve: guests pull the tap lever and pour their own drink. You may want one person stationed nearby for a high-volume reception, but no bartender certification is needed.
Q3. Can I include a non-alcoholic option in a separate keg for guests who don't drink? Absolutely. Gloria Keg works just as well for sparkling mocktails, juices, and flavoured sodas as it does for cocktails. A dedicated mocktail keg is a thoughtful and inclusive touch for any wedding.
Q4. How do I keep the kegs cold during the reception? The neoprene (a flexible, insulating rubber material) sleeve included with the Gloria 7L provides some insulation. For an outdoor summer wedding, place the keg in a cooler with ice beneath it, or pre-chill both the keg and ingredients for several hours beforehand. The Big G 10L can also be placed directly in a large cooler or on ice.
Q5. Is it cost-effective to use cocktail kegs instead of hiring a bartender for a wedding? Significantly, yes. A professional wedding bartender typically costs $200–$400 per event, plus gratuity and setup fees. A Gloria Keg pays for itself within 2–3 uses and gives you a reusable asset for every party, BBQ, and gathering that follows your wedding.
Make Your Wedding Bar the One Everyone Talks About
The drink station at your wedding shouldn't be a stressful afterthought , it should be a moment. A beautifully styled cocktail keg on the welcome table, your signature drink already poured and ready, guests helping themselves and raising a glass without a single queue? That's the kind of detail people remember.
Whether you're hosting 50 close friends in a backyard or 200 guests in a ballroom, the numbers are simple, the setup is effortless, and the payoff is enormous. Use the calculator above to lock in your keg count, pick your batch recipe, and let Gloria Keg handle the drinks so you can focus on the day itself.
Ready to start planning your wedding bar? Explore the full range of cocktail kegs and accessories at GloriaKeg and find the perfect setup for your guest list.
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