What is the name of the Champagne bottle size that holds nine litres?

A Salmanazar is the Champagne bottle size that holds nine litres.

A Salmanazar equals twelve standard 750-millilitre bottles. Large-format Champagne bottles are named after figures from the Bible and ancient history, creating a memorable but sometimes confusing sequence of terms. Salmanazar sits above a Methuselah, which holds six litres, and below a Balthazar, which holds twelve litres.

These names are not always used identically by every wine producer or region. In particular, large-format terminology can vary between Champagne and still-wine traditions. The nine-litre Salmanazar, however, is the conventional Champagne usage.

Large bottles have a lower ratio of wine surface area to volume than standard bottles. That can influence maturation, although storage conditions and closure quality remain important. Very large formats are uncommon and are mainly associated with celebrations or prestige releases.