 Grodziskie was brewed from wheat malt that was dried by circulating oak smoke through the grains . The smokiness of the grain and the mineral profile of the water used to brew the beverage gave the style its characteristic flavor . Breweries typically used locally produced hops in the beer and used one or two strains of brewer 's yeast in its production . Before packaging , the beer was filtered to remove suspended proteins that may cause cloudiness in the final product . The breweries allowed fermentation to finish in the casks or bottles , which resulted in its high carbonation . 
