Mixed Berry Jam

7 ingredients
9 steps

Ingredients

  • 2 cups blueberries
  • 2 cups raspberries
  • 2 cups strawberries
  • 2 cups blackberries
  • 3 cups sugar
  • 1 lemon, juice of
  • 2 teaspoons lemon rind, grated

Directions

  1. 1
    In a large pan, combine berries with sugar.
  2. 2
    Crush berries with a potato masher.
  3. 3
    Add lemon juice and lemon rind.
  4. 4
    Bring to a boil, skimming off any foam that forms.
  5. 5
    Cook at a full boil until jam thickens, approximately 30 minutes (jelling point is 221F).
  6. 6
    While the berries are cooking, sterilize your jars and heat the seals in a pan of hot water.
  7. 7
    Pour jam into hot jars; wipe rims, place seals and screw on bands fingertip-tight.
  8. 8
    Process in a boiling water bath for five minutes; remove to a protected countertop and let cool, undisturbed for 24 hours.
  9. 9
    If any of the lids have not sealed, either re-process or store in the refrigerator and use those jars first.

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