As an expert sommelier and brewer, I can confidently say that a standard bottle of champagne serves approximately 6 glasses. To be more precise, the standard serving size for a glass of champagne is 125ml or 4 fluid ounces. Therefore, when you have a 750ml (25 fl. oz.) bottle of champagne, you can expect to pour around 6 glasses.
It is important to note that this serving size is considered the standard, but it can vary depending on personal preferences and occasions. Some people may prefer larger or smaller servings, depending on the occasion or their own personal taste. However, for most formal occasions and wine tastings, the 125ml serving size is commonly accepted.
It is worth mentioning that the size of champagne glasses can also vary, and this can affect the number of servings you can pour from a bottle. Traditional champagne flutes are narrower and taller, which helps to preserve the bubbles and enhance the aromas. On the other hand, some modern glasses have a larger bowl to allow for more aroma development. These larger glasses may result in smaller servings per bottle.
In my personal experience, I have seen variations in serving sizes depending on the type of event. For example, at a wedding or a celebratory event, where champagne is often used for toasting, the pour may be more generous, resulting in fewer servings per bottle. Conversely, at a formal wine tasting or a restaurant setting, the pour tends to be more conservative to allow guests to sample multiple wines throughout the evening.
It is also important to consider the context in which champagne is being served. If it is being served as an aperitif or during a cocktail hour, guests may consume less and therefore stretch the number of servings per bottle. However, if champagne is being served as the main focus of a celebration or a dinner, guests may consume more, resulting in fewer servings per bottle.
A standard 750ml bottle of champagne typically serves approximately 6 glasses, based on a serving size of 125ml per glass. However, variations in glass sizes and serving preferences can affect the number of servings per bottle. It is always a good idea to consider the specific occasion and context when determining how many bottles of champagne to purchase.