The Meerts Tilquin series was made by fermenting fruit that had already been used once. The fruit was fermented for a period of 4 months in a blend of 80% 1 year old Meerts and 20% of a blend of different 2 year old lambics. Meerts (or March Beer) is a low strength lambic, which was originally produced with the weaker wort obtained from the rinsing of the grains. Unfiltered and unpasteurized, they are refermented in the bottle. There are 9 bottles with 9 different fruits: Pinot Meunier, Mirabelle, Pinot Gris, Gewurztraminer, Pinot Noir, Riesling, Elderberries, Cassis and Forest Fruits.