Jam or fruit preserves are preparations of fruits, vegetables and sugar, often canned or sealed for long-term storage. The preparation of fruit preserves today often involves adding commercial or natural pectin as a gelling agent, although sugar or honey may be used as well. The ingredients used and how they are prepared determine the type of preserves jams, jellies, and marmalade are all examples of different styles of fruit preserves that vary based upon the fruit used.