In such beers, malt is replaced by non malted cereals (wheat, buckwheat, quinoa, ...) or by fruits.
Beer brewed with an usual quantity of malt. As malt provides sugar for the fermentation, single malted beers usually have a medium or low alcohol content.
Beer brewed with a malt quantity double as usual. As malt provides sugar for the fermentation, double malted beers contain a little more alcohol and have a sweeter flavor that the ones with a single quantity of malt. Even if there is no obligation, double malted beers are used to be brown.
As there is no official definition for a "double" beer, the preceding explanation is mostly used in Belgium but is not approved unanimously.
Beer brewed with a quantity of malt triple as usual. This supplement gives a more pronounced flavor and stronger aromas. As malt provides sugar for the fermentation, triple malted beers have a high alcohol content.
As there is no official definition for a "triple" beer, the preceding explanation is mostly used in Belgium but is not approved unanimously.
Another explanation is that triple means triple fermentation : a primary fermentation depending on the recipe of the beer, a second during ageing and finally a third in the bottle.
Beer brewed with a malt quantity quadruple as usual. As malt provides sugar for the fermentation, quadruple malted beers have a huge alcohol content. Moreover they are quite rare.
As there is no official definition for a "quadruple" beer, the preceding explanation is mostly used in Belgium but is not approved unanimously.
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