I purchased a Brewer's Best Cherry Fruit Flavoring bottle (4oz for a 5 gallon batch) and i'm unsure if this has sugar in it. Bottle says NAT/ART FRUIT FLAVORING FOR BEER AND WINE .5% OR 3-4 OZ PER 5 GALLONS. The guy at the shop said when he uses it, he decreases the bottling sugar because his...