Liefmans Goudenband is one of the most distinctive dark beers in the world. Originally called IJzerenband (Iron Band) – a reference to the iron bands around the beer barrels – the bottle gained its champagne cork when it was renamed Liefmans Goudenband (Gold Band). Made in open vats with beer of mixed fermentation, it is left to mature for four to 12 months in the cellar. Mature beer is then fortified with younger beer, so the fermentation process starts up again.