How many litres does a Champagne jeroboam traditionally hold?

A Champagne jeroboam traditionally holds 3 litres.

In Champagne bottle terminology, a jeroboam is equivalent to four standard 750-millilitre bottles. Its 3-litre capacity makes it twice the size of a magnum, which holds 1.5 litres. Larger formats continue through names such as methuselah, salmanazar, and balthazar.

Champagne bottle names can cause confusion because terminology is not perfectly uniform across all wine regions. In Bordeaux, for example, “jeroboam” may refer to a different capacity, commonly 4.5 litres. This question uses the traditional Champagne convention.

Large bottles are prized for celebrations and can also offer favourable maturation conditions because the wine has a lower proportion of oxygen exposure relative to its volume. Their weight and pressure make them more difficult to handle than standard bottles.