Blueberry Jam

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There’s something deeply satisfying about making your own jam. It feels a little old-fashioned in the best way. And this Blueberry Jam Without Pectin is one of the easiest places to start.

Jar of blueberry jam in front of a plate of biscuits.

I started making this when I had too many blueberries and didn’t want to let them go to waste. The result? A sweet, tangy, richly flavored jam that tastes like summer in a jar. It quickly became a staple in my kitchen.

This homemade blueberry jam recipe without pectin uses just 3 ingredients and no special equipment. If you’ve got blueberries, sugar, and a lemon, you’re all set for a quick kitchen win. If you’re also into peach season, check out my Peach Jam Without Pectin for another easy small-batch favorite.

Biscuit halves on a white plate topped with blueberry jam. Fresh blueberries and homemade jar in mason jar are in background.

Whether you’re spreading it on warm toast, slathering it over English muffins, swirling it into yogurt, or spooning it onto buttery biscuits—this jam adds so much flavor to even the simplest snack.

Why you’ll love this recipe

  • A delicious, easy 3 ingredient blueberry jam recipe ideal for beginners
  • No pectin needed—just simple ingredients
  • Works beautifully with fresh or frozen blueberries
  • Perfect small batch for easy storage or gifting

Jam, Jelly, and Preserves—What’s the Difference?

  • Jelly is made from fruit juice and very smooth in texture.
  • Jam uses mashed fruit and has a soft, spreadable texture.
  • Preserves contain whole or large pieces of fruit.

This recipe can be jam or preserves—just mash the blueberries more for jam, or leave them mostly whole for blueberry preserves.

Ingredients Notes

This section includes ingredient notes and substitution options. Get all measurements, ingredients, and instructions in the printable recipe card at the end of this post.

Overhead view of granulated sugar, fresh blueberries, and a lemon on a marble surface, each labeled.
  • Blueberries: Fresh are best, but frozen also work well. If using fresh, rinse thoroughly, remove stems and debris, and let dry. If using frozen, thaw first to reduce extra water.
  • Sugar: Balances the berries’ tartness and helps preserve the jam.
  • Lemon Juice: Helps the jam set naturally with its natural pectin.
  • Lemon Zest : Optional, but highly recommend for a little extra zing and freshness.

How to Make Blueberry Jam without Pectin

This section shows you how to make the recipe with step-by-step photos and instructions. For the full printable recipe, see the recipe card below. 

Step 1: Combine blueberries, sugar, lemon juice, and lemon zest in a large saucepan. Lightly mash berries with a potato masher, if desired, for a smoother texture. Stir continuously while bringing to a gentle boil over medium heat.

Two images of a saucepan. The left image shows fresh blueberries, granulated sugar, and lemon zest. The right image shows a hand holding a small bowl of lemon juice above the same mixture in the saucepan.

Step 2: Reduce heat to medium-low and simmer uncovered for 10–14 minutes, stirring occasionally, until thickened and between 210–220°F—or until it passes the chilled plate test.

Chilled Plate Test

No thermometer? No problem. Place a small plate in the freezer while the jam cooks. Spoon a little jam onto the plate, return it to the freezer for 1 minute, then run your finger through the jam. If it wrinkles and holds the line, it’s ready. If not, cook a few minutes longer and test again.

Overhead view of blueberry jam cooking in a saucepan. The jam appears thick with visible whole berries.

Step 3: Remove the pot from the heat. Let rest 5 minutes before carefully spooning jam into two 8-ounce jars or one 16-ounce jar. Leave the hot jars uncovered until the jam cools to room temperature.

A close-up of a spoonful of thick blueberry jam being lifted from a mason jar. The jar sits on a wooden surface with biscuits and fresh blueberries in the background.

Storage

Refrigerate in an airtight container for up to 3 weeks.

Freeze for up to 3 months. Leave ½ inch of space at the top of the jar to allow for expansion. Thaw overnight in the fridge.

Homemade jam can be enjoyed once it’s cool, but it fully sets after 24 hours in the refrigerator.

A Quick Note on Canning

This recipe is not intended for canning. I don’t have personal experience with canning methods, so I recommend storing this jam in the fridge or freezer for safety. If you’d like to make a shelf-stable version, please consult a trusted canning resource.

Three jars filled with homemade blueberry jam without pectin beside a lemon and fresh blueberries.

Tips for Success

  • Stir continuously while bringing to a boil to prevent sticking.
  • Use an immersion blender if you prefer smoother jam.
  • Let jam cool fully before sealing jars to avoid trapped moisture.
  • Don’t skip lemon juice—it helps the jam thicken naturally without pectin.

Additions and variations

  • Add a pinch of cinnamon or nutmeg for a warmth.
  • Stir in a splash of vanilla extract after cooking for extra depth.
  • Mix in raspberries or blackberries for a berry blend
  • Reduce sugar slightly if you prefer a more tart flavor.

More Easy Fresh Blueberry Recipes

3-Ingredient blueberry jam next to biscuits and fresh blueberries.
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An open jar filled with homemade blueberry jam with biscuits and fresh blueberries in the background.
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Blueberry Jam Without Pectin

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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