All brewers of this style make fruit lambic. Many brewers of top fermentation beers such as Belgian golden ales, ambers and Flemish old brown beers, that produce beers that usually go through a multiple stage fermentation process, are catching on to the trend to make fruit beers. The process starts after the first fermentation of the wort, when sometimes sugar is added to referment the beer on wooden casks. To make fruit beer the fruit, juice or syrup is added (instead of sugar) to the first brew and refermented, these may be termed fruit lambics or fruit beers, depending on the type of first brew.