For canning and jamming, Pomona's Pectic is the gold standard. This citrus pectin has no sugar or preservatives (it's activated by calcium). Since it doesn't require sugar to jell, your jams can be made with less, little or no sugar, depending on your taste.
Made in: Denmark
Made of: Pectin
Size: Each 1 ounce box contains 1 packet of pectin, a packet of calcium podwer and an insert of directions and recipes (each box makes 2-4 recipes)