A shopping list, not a theory. Set your guests and how long the party goes on, copy the list, send it to your wine merchant.
93 bottles
Plus 191 bottles of water and soft drinks, counted separately because they aren’t bought in the same place or at the same price.
For 100 guests, 71 of whom drink wine. A 75 cl bottle pours six glasses: everything is worked out from that.
Rounded up. Unopened bottles can go back.
40 kg
Of ice. One bucket per drinks table, double if it’s hot.
250
Glasses to hire. People put one down and pick up another: that’s normal.
Between £840 and £2,050 if you buy the alcohol yourselves, depending on the bottles you choose. The same service ordered through the caterer often costs twice as much.
If the venue charges corkage, allow around £740 extra to bring your own wine. It’s the first thing to ask on the viewing, before the hire fee itself.
Drinks on the lawn at 5 pm, dinner in the marquee at 8: put the running order on your page, and your guests have it in their pocket on the day.
Create your page, it’s freeAround 45 bottles for a drinks reception followed by dinner, assuming three guests in four drink. It’s worked out in glasses: a 75 cl bottle pours six, and you count two to three glasses per drinker at the reception, three at the table.
One bottle for six flutes. If the champagne is only for the toast, one bottle per six drinkers is enough. If it flows for the whole reception, plan three times as much, or switch to prosecco or crémant: nobody will mind, and the bill changes completely.
What the venue or caterer charges to let you bring your own bottles, usually between £5 and £15 per bottle opened. Ask on the viewing: over a hundred and fifty bottles, the difference runs into thousands of pounds.
Much more than you think, especially in summer: a litre per person over a full evening, half still and half sparkling. It’s the only line where having too much costs almost nothing and running out shows immediately.