A large-format bottle holds more than the standard 750ml — magnum (1.5L), double magnum, jeroboam, methuselah, salmanazar, balthazar and nebuchadnezzar among them. Beyond their impressive presence, large formats age more slowly and evenly because the wine-to-oxygen ratio is lower, so the same wine matures more gracefully in a magnum than in a standard bottle.
WHY IT MATTERS FOR COLLECTORS
Large formats command premiums for aging quality, rarity and occasion. A magnum is the connoisseur's preferred size for cellaring; oversized formats are showpieces and sought-after at auction.
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