What is a champagne split?

A champagne split is a small, single-serving bottle of champagne, which typically contains 187 milliliters or roughly 6.3 fluid ounces. It is also known as a "quarter bottle." The smaller size makes it perfect for occasions where only a glass or two of bubbles are needed. Champagne splits are often used for wedding toasts, celebrations, or for people who aren't keen on drinking a full bottle of champagne. They are also commonly seen on airplanes, hotels, and restaurants that offer champagne by the glass.