A bottle of champagne usually serves 6 or 7 glasses, but does not allow guests to refill their glasses. For a reception for 12 people, we recommend 3 bottles of Veuve Clicquot Brut Carte Jaune or Rosé, for example. If the reception is a Champagne dinner, you’ll need to plan for about one bottle per person, so that you can serve glasses from the aperitif through to dessert.