Description: Excellent jam and no Certo needed. The raspberries have natural pectin in their seeds and that is enough to thicken it. 5 lbs = 9 cups crushed berries.
Ingredients:
4 cups mashed raspberries
4 cups sugar
Steps:
Use a very large pot.
When the jam reaches a full rolling boil it will double in volume.
Heat mashed berries until they reach a full rolling boil.
Boil 2 minutes.
Add sugar.
Stir well.
Bring to a boil, stirring constantly, boil for 2 minutes.