In origin, this sweet-acid drink was obtained by adding fresh black cherries to a barrel Lambic of 6 months young. The addition of fruits provokes a new fermentation in the oak barrels. After another 8 to 12 months, only peels and stones left and the Kriek-Lambic is ready to be filtered and bottled. The residual sugar can be adjusted with straight-on fruit juice to give a refermentation in the bottle. This traditional type of fruit beer is more acid and less fruity.
Because of the high price of fresh black cherries and the limited availability (only in the beginning of August), just as to brew a less sour and more fruity Lambic beer, Lindemans farm brewery developed an unique natural method using pure cherry pulp from unfrozen cherries. This straight cherry juice is blended with selected Lambic of different ages. Kriek has a pink-red color and a delicious taste of sparkling cherry champagne.