Each of the six 5.3 oz. packets makes 32 oz. of feed. The entire box will make a gallon and half of feed. It’s easy to use and extremely attractive to hummingbirds. Our Hummingbird Nectar is a premium formula which contains sucrose, preferred by hummingbirds over monosaccharide glucose or fructose sugars. Just mix each packet with a quart of water – the perfect amount to fill one of our 32 oz. feeders! FDA Red #40 added.