Now that you know that a magnum equals two bottles, meet the double magnum, or Jeroboam, which holds up to four. As for the name, Jeroboam refers to the first king of Israel after its revolt from ...

Bottle shapes and sizes can play a role in the equation. After the standard 750 milliliters, the most common variation is the larger magnum bottles, which hold 1.5 liters, or approximately twice ...