Our FDA compliant, BPA free, eco-fresh bag provides up to an 85% reduced carbon footprint over more traditional Pack. Each pouch holds as twice the amount of nectar as our popular bottles and offers a durable leak proof cap that keeps your product fresh long after it is opened.Ready-To-Use Formula- 1.5 liter pouch takes all the hassle out of feeding your hummers and is made from the same ingredients as out popular hummingbird nectar concentrates. Just pour straight from the bag into any hummingbird feeder and enjoy! 9 pouches/case. Concentrate Formula- 1.5 liter pouch makes a 4500ml (3X) by simply adding the appropriate amount of regular tap water, and is infused with all natural, steam-distilled wildflower extracts that your hummers will love.