This is a human-grade jelly in a 20.5 oz squeeze bottle that makes filling all jelly feeders easy. BirdBerry Jelly is made of grape juice, concord grapes, blackberries and pure granular sugar. Compare to normal grocery labels and you'll see BirdBerry is a higher quality - that's better for the birds. Guarded unique grape/blackberry jelly recipe attracts more birds and keeps them hooked on BirdBerry Jelly as their favorite. No preservatives or additives. No corn sweetener products. Lower sugar levels, more fruit - all natural. Does not need to be refrigerated.