Liquid Cement

READY IN: 20mins
Recipe by RecipeMonster

This is a formula or fix for setting up jam or jellies that did not set!

Top Review by xtine

This worked very well for me - I had some jam which had not set, and this did the trick. FYI - this scales down well. I only had 4 half pints of jam to work with, so I just used the formula of 1/2 ounce each of sugar, lemon juice and pectin per half pint, and it set up beautifully. Thanks so much for posting this; it's so disappointing when jelly or jam does not set, and this does the trick to fix it!

Ingredients Nutrition

  • 8 cups jam or 8 cups jelly, un-set
  • 12 cup sugar
  • 12 cup lemon juice
  • 12 cup liquid pectin (such as Certo)


  1. Place the un-jelled mixture in a saucepan.
  2. Add 1/2 cup sugar.
  3. Bring to a boil, stirring constantly.
  4. Then add 1/2 cup of lemon juice and 1/2 cup liquid pectin.
  5. Return the mixture to a boil.
  6. Boil for 4 minutes only.
  7. Pour into freshly washed & sterilized hot jars.
  8. Seal with lid or wax.

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