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An open jar filled with homemade blueberry jam with biscuits and fresh blueberries in the background.
Recipe

Blueberry Jam Without Pectin

Servings: 24
Author: Jaclyn
Prep: 15 minutes
Cook: 30 minutes
Total: 45 minutes
This homemade blueberry jam is a simple, small-batch jam made with blueberries, sugar, and lemon. No pectin or water bath needed!

Equipment

Ingredients
 

  • 4 cups fresh blueberries
  • 1 ½ cups granulated sugar
  • 1 Tablespoon lemon juice
  • ½ teaspoon lemon zest

Instructions

  • In a large saucepan, stir together blueberries, sugar, lemon juice, and optional lemon zest. If desired, lightly mash blueberries with a potato masher to your desired texture.
    4 cups fresh blueberries, 1 ½ cups granulated sugar, 1 Tablespoon lemon juice, ½ teaspoon lemon zest
  • Stir continuously while bringing the mixture to a gentle boil over medium heat.
  • Reduce heat to medium-low. Simmer uncovered for 10–14 minutes, stirring occasionally, until the jam thickens and reaches 210–220°F or passes the plate test (see tip below).
  • Remove from heat. Allow to rest for 5 minutes. It will continue to thicken up a bit as it cools.
  • Carefully spoon the jam into clean jars. Leave the lids off and all the jam to cool completely before sealing. Store in the fridge for up to 2 weeks or freeze for longer storage.

Notes

Texture: Leave berries whole or mash/puree for a smoother jam.
No thermometer? Use the plate test: place a plate in the freezer while jam cooks. Spoon on a little jam, return the plate to the freezer for 1 min, then run your finger through the jam—if it wrinkles slightly and holds the line, it’s done. If it is very liquidy, keep cooking and test again in a few minutes.
Setting: Jam can be enjoyed once cool, but won't be fully set until after about 24 hours in the fridge.
Yield: Makes about 1½ cups. Store in 2 half-pint jars or 1 pint jar.
Serving Info: Nutrition is estimated per 1 Tablespoon.

Nutrition

Calories: 62kcal | Carbohydrates: 16g | Protein: 0.2g | Fat: 0.1g | Saturated Fat: 0.01g | Polyunsaturated Fat: 0.04g | Monounsaturated Fat: 0.01g | Sodium: 0.4mg | Potassium: 20mg | Fiber: 1g | Sugar: 15g | Vitamin A: 13IU | Vitamin C: 3mg | Calcium: 2mg | Iron: 0.1mg
An open jar filled with homemade blueberry jam with biscuits and fresh blueberries in the background.

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