Home Learn Double magnum Decanter Staff November 11, 2010 Bottle of 3 litres equivalent to 4 normal (75cl) bottles. In Champagne this size is called jeroboam. Written by Latest Wine News Bordeaux 2024: Branaire-Ducru ‘sets example’ before big second week Coravin World Wine Tour features elite restaurants and bars in eight countries Traces of ‘forever chemical’ TFA found in European wines Blind faith: Eliza Dumais on our obsession with tasting blind Michelin Guide Buenos Aires & Mendoza 2025: Winners revealed