Pectin is a naturally occurring substance found in fruits such as grapes, lemons and oranges. Orange pectin can be used as a thickening agent when making sauces, jams, jellies, puddings and yoghurts. Many types of pectin can be bought from the supermarket, but you can make your own pectin from orange peels right in your own kitchen.
Clean the oranges by rinsing them under cool water. Use a vegetable peeler to remove the peel from the oranges and cut the peel into small julienne slices. Put the orange peels into a medium saucepan.
Cut the oranges in half using a sharp knife and remove the seeds. Put the seeds aside in a small bowl.
Squeeze the juice of the oranges into the medium saucepan that contains the orange peels. Add the remaining part of the orange, the membrane, to the bowl with the orange seeds.
Place the orange seeds and membranes into a muslin jam bag, place it in the saucepan with the peel and add 1 litre (4 cups) of water. Bring the contents of the saucepan to a boil, and boil for approximately 30 minutes.
Remove the muslin bag from the saucepan and let it cool until it is slightly warm to the touch. Squeeze the muslin bag to remove the orange pectin using a "milking" motion.