Fruit-based lambics are often produced like gueuze by mixing one, two, and three-year old lambic. "Young" lambic contains fermentable sugars while old lambic has the characteristic "wild" taste of the Senne River valley. Fruit is commonly added halfway through aging and the yeast and bacteria will ferment all sugars from the fruit. Fruit may also be added to unblended lambic. The most traditional styles of fruit lambics include kriek (cherries), framboise (raspberries) and druivenlambik (muscat grapes). ENTRANT MUST SPECIFY THE TYPE OF FRUIT(S) USED IN MAKING THE LAMBIC. Any overly sweet lambics (e.g., Lindemans or Belle Vue clones) would do better entered in the 16E Belgian Specialty category since this category does not describe beers with that character. IBUs are approximate since aged hops are used; Belgians use hops for anti-bacterial properties more than bittering in lambics.