Planning the perfect champagne service requires knowing exactly how much to buy per guest and how many glasses each bottle yields
Understanding how many glasses come from each champagne bottle size
Figuring out how many glasses you’ll get from a champagne bottle depends on two factors: the bottle size and your pouring amount per glass.
Here’s a general guide to servings from different bottle sizes:
- Quarter bottle (200 ml): Perfect for solo enjoyment – yields 1-2 glasses
- Half bottle (375 ml): Ideal for couples – about 3 glasses
- Standard bottle (750 ml): The classic size – serves 6 people with 125ml pours
- Magnum (1.5 L): Double the capacity – 12 glasses
- Jeroboam (3 L): For large celebrations – 24 glasses
- Methuselah (6 L): Massive format – approximately 48 servings
A standard champagne bottle holds 750 ml – with 125 ml pours (about two-thirds of a flute), you’ll get exactly six glasses. This is the most common measurement when planning champagne quantities .
Your pouring style significantly impacts servings. For toasts (75-100ml), one bottle serves 7-10 people. More generous 150ml pours reduce that to about five glasses.
Quick calculation formulas for any event
The essential formula is: (Number of guests × glasses per person) ÷ 6 = bottles required – always round up.
Example: For 80 guests having 2 glasses each: (80×2)÷6 = 26.7 → round to 27 bottles. Adding a 10% buffer brings you to approximately 30 bottles .
This calculation method works for intimate gatherings or large-scale events.
Professional champagne preservation for glass-by-glass service
Maintaining quality is crucial when you serve champagne by the glass or need to preserve opened bottles .
This portable system uses pressure-regulated “smart caps” and food-safe CO₂/N₂ cartridges to re-pressurize an opened bottle , keeping bubbles and aromas fresh for up to a week .
Designed for standard 0.75L and 1.5L bottles , it takes just five seconds per injection. Each cartridge can preserve about five full bottles (25-30 quick bursts), letting you serve champagne by the glass while keeping the rest fresh between pours for each person .
Maintenance is simple – just store the upright bottle below 10°C for best results. Serve Champagne by the glass — keep opened bottles fresh for up to a week
Bars and event teams can open fewer bottles initially, pour what’s needed, and save the rest properly stored.
A single bottle of champagne typically provides six 12cl glasses when portioned correctly, with the preservation tech keeping leftovers fresh for days.
The gas cartridge system automatically adjusts pressure after each pour, counteracting the increasing air gap as the bottle empties.
One reusable cartridge protects at least five full bottles when handled properly between servings.
Professional preservation versus traditional methods
Extended freshness and quality retention
Old-school tricks like using a spoon or original cork only keep champagne drinkable for a day or two.
Modern systems maintain bubbles and taste for 5-7 days by restoring bottle pressure with an 80% CO₂/20% N₂ mix – the same gas blend used during production.
The built-in pressure regulator prevents over-filling while ensuring perfect preservation.
Works with all méthode champenoise wines including Champagne, Cava, and Prosecco.
Simple operation for busy service
Professionals can re-pressurize a bottle in seconds with a quick trigger pull between pours.
Fits seamlessly into normal wine service, with food-grade silicone and stainless steel parts that clean easily.
Many bars keep extra caps on hand for fast bottle changes during busy shifts without compromising quality.
Mobile solution for events and tastings
Designed for wine-tasting professionals and vineyard tours, the innovative TempTour system combines a portable cooler (maintaining bubbly at 10°C for 5-6 hours) with the “Bubbl” Smart Cap. This clever cap injects a food-safe CO₂/N₂ mix to preserve the champagne’s bubbles and aroma for over a week. The entirely mechanical system works with any sparkling wine bottle size, letting you serve perfect 12cl glasses—about six servings per standard 750ml bottle—while minimizing waste. For best results, simply store bottles upright in the cooling module.
Learn how to keep opened Champagne fresh during tastings
Unlike bulky preservation systems, these portable units move easily between locations, giving you precise control over portions while reducing waste at multiple venues.
Calculating champagne needs for different event types
Toast-only events and ceremonial occasions
For events featuring just a champagne toast, budget one glass per guest , with pours ranging from 75ml to 125ml.
A regular 750ml bottle will serve 6-10 people depending on pour size.
Quick calculation: Number of guests ÷ 6 (for 125ml pours) or ÷ 10 (for smaller 75ml ceremonial sips).
Example: For 120 guests, you’d need 20 bottles (125ml pours) or 12 bottles (75ml sips).
Receptions and aperitif service
At cocktail parties where champagne flows as the main drink, plan for 1.5-2 glasses per person over 2-3 hours.
This roughly equals one bottle per three to four guests .
Example: For 60 guests at 2 glasses each (120 servings), you’d need 20 bottles (plus 2 extra as buffer).
Dinner parties and extended celebrations
For longer events (3-4 hours) with champagne as the featured drink, estimate 3-4 glasses per person .
This works out to about half a bottle per guest .
Example: For 100 guests drinking 3 glasses each, prepare 50 bottles.
Remember: The actual amount of champagne consumed will vary based on guest preferences, event duration, food pairings, and alternative drink options. Always include a 5-10% extra to account for refills, accidents, and enthusiastic drinkers.
Frequently Asked Questions About Champagne Quantities
How much champagne should I serve per person?
When planning champagne service, consider both the event type and duration. Here’s a breakdown by occasion:
- Single toast: Each guest receives 75–125ml (1 glass). One standard bottle serves 6–10 people.
- Cocktail hour: Anticipate 1.5–2 champagne glasses per person — about 3–4 guests per bottle.
- Dinner reception: Budget for 2–3 glasses per guest over 2–3 hours.
- Full evening affair: Plan for 3–4 glasses per person (approximately half a bottle each).
- Mimosa brunch: One bottle makes 6–8 cocktails, depending on your mix ratios.
Remember: A standard bottle of champagne contains 750ml. The industry standard pour is 125ml per glass, meaning you’ll get about six servings from each bottle. This measurement serves as an excellent planning reference.
How many bottles do I need for 50 people?
Use these calculations to estimate champagne quantities for 50 guests:
- Quick toast: 50 guests ÷ 6 glasses/bottle = 9 bottles (rounded up)
- Double toast: 100 glasses needed = 17 bottles
- Cocktail reception: 100 glasses + 10% buffer = 19 bottles
- Extended event: 150 glasses = 25 bottles
- All-evening celebration: 200 glasses = 34 bottles
Pro tip: Purchase by the case (6 bottles each) for easier planning. For 50 guests having two glasses each, buy 3–4 cases (18–24 bottles) to ensure you have enough with some to spare.
Actual consumption may vary based on your guests’ drinking preferences, event duration, menu choices, and alternative beverage options. While a champagne-focused party will naturally require more bottles, offering other drink choices may reduce your champagne needs.