Strawberry Freezer Jam

We’ve been making this delicious jam for 30 years or more. My Mum used to make it and the recipe came from Certo. I make half for the two of us (and there is still enough to give some away) but for a family I’d make the lot. It is wonderful on scones with Cornish clotted cream. You can use the same recipe with Blackberries or Raspberries.


  • 3lbs strawberries
  • 4lbs caster sugar (granulated works too) ( These days I use only 3lbs sugar!)
  • 1 bottle Certo (liquid pectin)

How to do it

  • Crush the strawberries in a large bowl using a potato masher. Leave some lumpy bits.
  • Pour in the sugar and stir well.
  • Allow to stand in a warm place, stirring occasionally until the sugar has thoroughly dissolved.
  • Add the Certo and stir for 2 minutes.
  • Leave, covered for 24 hours.
  • Ladle into small containers (I use plastic) , cover securely, label and put in the freezer. (Leave some expansion room)

Sugar all dissolved, Certo mixed in, now to wait 24 hours

Little boxes, hold just a couple of ladles full

The jam will keep for 6-8 months in the freezer (We have kept it for 18 months!) Keep it in the fridge after defrosting.



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