Go Back
+ servings
mason jar of homemade strawberry jam

How to Fix Freezer Jam

Yield: 64 Tablespoons
Prep Time: 15 mins
Resting Time: 1 d
Total Time: 1 d 15 mins
How to fix freezer jam that didn't thicken using liquid fruit pectin. Don't toss it- your jam can be saved!
5 from 3 votes


  • 1 cup jam that didn't set
  • 3 Tablespoons sugar
  • 1 1/2 teaspoons lemon juice
  • 1 1/2 teaspoons Certo Liquid Fruit Pectin


  • PREPARE containers: Rinse clean containers and lids with boiling water; dry thoroughly.
  • PREPARE A TRIAL BATCH: Measure 1 cup of jam into small bowl. Add sugar and lemon juice. Stir 3 minutes until sugar is completely dissolved. Add liquid pectin. Stir an additional 3 minutes. Pour into one of the prepared containers. Cover and let stand 24 hours before checking to see if set. Store opened pouch of pectin in refrigerator.
  • PREPARE REMAINDER OF BATCH: If the trial batch sets correctly, prepare remaining jam. DO NOT remake more than 8 cups of jam at one time. Use the same directions and measurements as for trial batch per 1 cup of remaining jam. Pour into prepared containers. Cover and let stand 24 hours before freezing.


These instructions are for Certo Liquid Fruit Pectin. 
Helpful conversions:
  • 3 teaspoons = 1 Tablespoon
  • 8 Tablespoons = 1/2 cup
  • 16 Tablespoons = 1 cup 
Freezer jam will not be as firm like store bought jelly. If your jam is still too thin you can swirl it into homemade ice cream, use as a topping, or spoon over pancakes and waffles. 
Course: Jams and Jellies
Cuisine: American
Keyword: freezer jam, strawberry, tips