When making jams and jellies, you should look for methods that use pectin, which is naturally present in the jelly fruit. Read on to learn how to test your jelly for pectin, and the signs that the jelly you’re making is overcooked. You can also check for pectin in fruit juice. To make your jelly at home, follow these steps: Pectin is a jelly fruit Most fruit contains pectin, a natural polysaccharide starch that serves as glue for fruit cell walls. Apples, plums, and citrus fruits are the most common…