Cooked Blueberry Jam - CERTO Crystals

25 7 (1-cup/250-mL) jars or 112 servings, 1 Tbsp. (15 mL) each
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7 (1-cup/250-mL) jars or 112 servings, 1 Tbsp. (15 mL) each

Yes, even you can make jam! The CERTO Pectin Crystals are a quick and easy way to make homemade jams. This virtually foolproof recipe for Cooked Blueberry Jam is sure to become a new family favourite.

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What You Need

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Make It

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  • Crush blueberries, one layer at a time. Measure exactly 4 cups prepared blueberries into large saucepan. Stir in lemon juice. Add pectin crystals; mix well.
  • Bring to full rolling boil on high heat, stirring constantly. Add sugar; mix well. Return to full rolling boil; cook 1 min., stirring constantly. Remove from heat. Stir and skim foam for 5 min. to prevent fruit from floating to surface.
  • Pour immediately into warm sterilized jars, filling to within 1/4 inch of rims. Cover with lids. Let stand at room temperature 24 hours or until set.

Food Facts

Measure ingredients accurately. Prepared fruit should be measured in a glass measuring cup after crushing.

How to Accurately Measure the Sugar

To ensure accuracy of the sugar measure when preparing jams or jellies, use a dry measuring cup to measure the sugar, then place all the measured sugar in a separate bowl before adding it to the boiling fruit mixture in saucepan.


  • 7 (1-cup/250-mL) jars or 112 servings, 1 Tbsp. (15 mL) each

Nutritional Information

Serving Size 7 (1-cup/250-mL) jars or 112 servings, 1 Tbsp. (15 mL) each
Calories 40
% Daily Value
Total fat 0g
Saturated fat 0g
Cholesterol 0mg
Sodium 0mg
Carbohydrate 11g
Dietary fibre 0g
Sugars 10g
Protein 0.1g
Vitamin A 0 %DV
Vitamin C 2 %DV
Calcium 0 %DV
Iron 0 %DV

* Nutrition information is estimated based on the ingredients and cooking instructions as described in each recipe and is intended to be used for informational purposes only. Please note that nutrition details may vary based on methods of preparation, origin and freshness of ingredients used.

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