How Much Food and Drink Do You Actually Need?

Catering quotes love to talk in vague terms: "plenty of canapes", "a generous bar". That's no use when you're the one signing the cheque and lying awake wondering if 60 people will drink the bar dry by eight o'clock. So let's put real numbers on it. None of this is gospel, but it's the rule of thumb most caterers and venues actually work to in the UK.

Two things drive everything: how long the day runs, and what sort of crowd you've got. A 1pm to midnight wedding needs far more than a 3pm ceremony with an evening finish, and a room full of your rugby club mates will out-drink a quieter family gathering. Adjust accordingly.

Canapes and the gap before dinner

The danger window is the bit between the ceremony and the wedding breakfast, when people are standing around with a drink and nothing to soak it up. Underfeed them here and the speeches get wobbly later.

The standard guidance is around 4 to 6 canapes per person if dinner follows within a couple of hours. Stretch it to 6 to 8 if there's a long gap, or if you're skipping a starter. Aim for a mix: something hot, something cold, a veggie option and ideally a little carb in there, because protein-only canapes vanish without filling anyone up.

The wedding breakfast

Portion sizes here are really the caterer's job, but you can sense-check it. The classic worry is the meat. For a plated main, most caterers allow roughly 200g to 225g of meat per person before cooking, which is a proper restaurant portion. You don't need more, and ordering "extra to be safe" is how plates come back half-finished.

If you're doing a buffet, build in 20 to 30 percent more food than a plated meal, because people pile their plates and go back for seconds. It's the hidden cost of buffets that nobody mentions.

Drink: the part everyone overthinks

Here's a rough framework for a full day. Tweak it down for a shorter event or a lighter-drinking crowd.

A standard 75cl bottle gives you about six glasses of wine or six modest flutes of fizz. So for a sit-down meal of 80 guests at half a bottle each, you're looking at roughly 40 bottles of wine, plus around 14 bottles of fizz for the toast. Buy on sale-or-return where you can; most decent merchants will take back the unopened bottles, which removes the fear of over-ordering entirely.

Don't forget the people who aren't drinking. According to the NHS, no amount of alcohol is recommended in pregnancy, and on any given day you'll have drivers, expectant mums and guests who simply don't fancy it. Budget a proper soft drink for everyone, not a sad jug of squash.

Water, tea and the things people forget

• Water on every table, still and sparkling. People drink more of it than you'd think, especially in summer.
• Tea and coffee after the meal. Reckon on at least one cup each, often two.
• Soft drinks at the bar in real variety. A good alcohol-free option or two now feels expected, not optional.

It's the unglamorous stuff that keeps a wedding comfortable. Warm rooms and salty canapes make people thirsty, and nothing dampens a party faster than queuing twenty minutes for a glass of tap water.

The cake, and the late-night top-up

For the cake, if it's being served as dessert you want a full portion per guest. If it's an extra alongside a separate pudding, a finger-sized slice is plenty, and a three-tier cake easily covers 80 to 100 of those. Plenty of couples now box up the leftover tiers for guests to take home, which is lovely and stops half a cake going stale in the car.

A late-night snack around 9 or 10pm is one of the best-value things you can add. Bacon rolls, chips in cones, a cheese toastie, anything warm and salty. You don't need a full portion for everyone here, because some will have drifted off; cater for around 70 percent of your evening headcount and you'll be about right.

Pinning down your final numbers

All of this hinges on knowing who's actually coming and what they're eating. Vague estimates are where money leaks out. If your wedding website collects RSVPs with meal choices, you'll head into the final fortnight with real numbers per course rather than a guess, which is exactly what your caterer wants when they ask for final figures.

Build in a small buffer of two or three extra meals for the suppliers and the odd surprise, then confirm. Order to that, not to your worst-case fears, and you'll feed everyone well without paying for a fridge full of food nobody touched.