Homemade Blueberry Jam

5 from 4 votes
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This quick 4-ingredient blueberry jam is perfect for preserving the sweet and tangy flavor of blueberries at the height of their season! Plus, you can store it in the fridge, freezer, or can it in a hot water bath!

A spoonful of homemade blueberry jam over a small jar

Making homemade jams is one of my favorite ways to preserve and savor the flavor of summery sweet berries year-round – like strawberries, raspberries, blackberries, and blueberries. This easy blueberry jam recipe requires just 4 key ingredients, can be flavored several ways, and takes as little as 20 minutes to prepare with minimal effort.

The homemade jam tastes so much fresher and better than grocery store versions, too. There are no unwelcome additives or artificial preservatives, and it’s made healthier by reducing the added sugar by 25% and using liquid pectin to ensure a good set.

Better yet, you can store it in the fridge/freezer or learn how to can blueberry jam in a water bath to make it shelf stable for up to a year to spread, swirl, and dollop in breakfasts and desserts.

A small bowl with homemade blueberry jam

Have even more juicy blueberries to use? Try blueberry bread, blueberry cobbler, or no-bake blueberry Earl Grey tart, or freeze them to add to smoothies.

Blueberry Jam Ingredients

  • Blueberries: It’s best to use “just ripe” or “ripe” fresh blueberries for this recipe, as overly ripe berries can become leathery on the outside and affect the texture of the jam. Frozen (thawed) blueberries work too.
  • Sugar: Granulated white sugar will sweeten without adding extra flavor, so it is the preferred option. However, it is possible to use unrefined coconut or date sugar too.
  • Lemon juice: You can use fresh or bottled lemon juice, which will help to balance flavor, boost the pectin content, and is a natural preservative. Add lemon zest for even more zing.
  • Pectin: I use liquid pectin to help the jam set to the correct consistency.

Refer to the Recipe Card Notes for some of my favorite ways to add flavor to this easy blueberry jam recipe.

Ingredients for blueberry jam

How to Make Blueberry Jam

Step 1: Sterilize the Jars

First, it’s important to sterilize all the jars and tools used for this recipe. Wash the jars, lids, and bands in hot, soapy water, rinse them well, and leave them to drain and dry.

If you’re planning to can the jam, prepare the canner now, too, by adding the trivet/rack to the bottom of the canner and filling it with enough water to submerge the cans.

Steps for sterilizing jars

Step 2: Prepare the Blueberries

Then, wash the blueberries well, removing any that are spoiled, have blemishes, etc.

Transfer the berries to a large, deep, stainless-steel saucepan along with the sugar and lemon juice. Then use a potato masher or fork to gently crush the berries, leaving some whole if preferred.

Blueberries mixed with sugar and lemon juice in a bowl

Step 3: Cook the Jam

Bring the mixture to a full rolling boil over high heat, stirring constantly. Then stir in the pectin and continue to stir over a hard boil for one minute.

Then, remove the blueberry jam from the heat, skim off any foam, and ladle the hot jam into hot jars, leaving about ¼ inch (0.5 cm) of headspace. Tap the jar against your kitchen surface and/or use a knife to remove any air bubbles in the jam.

Steps for boiling blueberries to make blueberry jam

To make the jars hot, heat them (lids on) in the water bath canner while bringing the water to an almost boil. Alternatively, warm the jars (not lids) in an oven or dishwasher.

Finally, wipe the jar rims with a clean kitchen towel. Place the lid on the jar, then screw the bands until they are fingertip-tight.

A small jar with blueberry jam

Water Bath Canning

Canning blueberry jam is simple and only adds 4 low-fuss steps to the recipe.

  1. Place the filled jars in the prepared canner, ensuring they’re fully submerged under at least 1 inch of water.
  2. Bring the water to a boil over medium-high heat, add a lid, and allow them to process in the boiling water for 10 minutes (adjust the time based on the altitude).
  3. Then, remove the canner lid and allow them to sit for 5 minutes before carefully using canning jar tongs to remove the jars from the water and set them onto a clean kitchen towel to drain and cool undisturbed for 24 hours.
  4. Once cooled, check the jar seals (the middle part of the lids should not pop up and down when pressed), then store them in a cool, dark location (like your pantry) for up to a year.
Water bath canning jars with jam

Any unsealed jars can be reprocessed with new lids or transferred to the refrigerator to use within a month.

How to Serve Blueberry Jam?

  • As part of a cheese board,
  • As a spread over toast, bagels, simit, scones/biscuits, a grilled cheese, etc.
  • Within a PB&J sandwich,
  • Dolloped over pancakes, waffles, and French toast,
  • Thin with water to use as a sauce for cheesecake or glaze for chicken,
  • Spoon into oatmeal or overnight oats,
  • Stir into yogurt (optionally with fruit and granola),
  • Use as an ice cream topping,
  • Swirl over or as a filling for muffins, cakes, cookies (including thumbprint cookies), and pastries.

Blueberry preserves also make a great gift during the holidays. Let me know in the comments how you best enjoy it!

A spoonful of homemade blueberry jam

Top Tips for Success

  • Select the best blueberries: They should be “just ripe” or “ripe,” but not overripe, with a juicy, sweet flavor. Avoid using any past their best, blemished, bruised, etc.
  • Make sure to use sterilized jars: This is important to avoid premature spoiling.
  • Use nonreactive tools: This includes a nonreactive saucepan (stainless steel, glass, enamel-coated will work well), spoons (silicone or wooden), etc. Avoid aluminum, copper, etc.
  • Stir constantly: To avoid the berries scorching/sticking to the saucepan.
  • If you have one, use a thermometer: To take the guesswork out of achieving the perfect jam, use a thermometer. It should reach 220ºF/105ºC for a good gel stage. Alternatively, test it using the spoon & plate method – test a few drops on a frozen saucer and place it in the fridge for a minute. It should wrinkle and be gel-like when pushed through with a finger.
  • Adjust the jam consistency: If you’ve accidentally made the jam too thin or evenly overly solid, don’t worry. Just reheat the mixture and either add more pectin (to thicken it) or some water and lemon juice (to thin it).

More Simple DIYs

If you try this blueberry jam recipe, let me know how it goes in the comments below. I’d appreciate a recipe card rating and would love to see your recipe recreations – tag me on Instagram @Alphafoodie!

Homemade Blueberry Jam

5 from 4 votes
By: Samira
This quick 4-ingredient blueberry jam is perfect for preserving the sweet and tangy flavor of blueberries at the height of their season! Plus, you can store it in the fridge, freezer, or can it in a hot water bath!
Prep Time: 5 minutes
Cook Time: 10 minutes
Total Time: 30 minutes
Servings: 40

Equipment

Ingredients 
 

  • 30 oz blueberries 6 cups fresh
  • 25 oz white sugar 4 cups
  • 1/4 cup lemon juice from 1 large lemon
  • 6 oz liquid pectin 2 pouches/ 3/4 cup; if using powdered pectin – see Notes below

Instructions 

  • Sterilize all the jars and tools used for this recipe. Wash the jars, lids, and bands in hot, soapy water, rinse them well, and leave them to drain and dry.
    If you're planning to can the jam, prepare the canner now, too, by adding the trivet/rack to the bottom of the canner and filling it with enough water to submerge the cans.
  • Wash the blueberries well, removing any that are spoiled, have blemishes, etc.
  • Transfer the berries to a large, deep, stainless-steel saucepan along with the sugar and lemon juice. Then use a potato masher or fork to gently crush the berries, leaving some whole if preferred.
    30 oz blueberries, 25 oz white sugar, 1/4 cup lemon juice
  • Bring the mixture to a full rolling boil over high heat, stirring constantly. Then stir in the pectin and continue to stir over a hard boil for one minute.
    6 oz liquid pectin
  • Remove the jam from the heat, skim off any foam, and ladle the hot jam into hot jars, leaving about ¼ inch (0.5 cm) of headspace at the top. Tap the jar against your kitchen surface and/or use a knife to remove any air bubbles in the jam.
    To make the jars hot, heat them up (lids on) in the water bath canner while bringing the water to an almost boil. Alternatively, warm the jars (not lids) in an oven or dishwasher.
  • Wipe the jar rims with a clean kitchen towel and place the lid on the jar, then screw the bands until they are fingertip-tight.

Water Bath Canning (optional)

  • Place the filled jars in the prepared canner, ensuring they're fully submerged under at least 1 inch of water.
  • Bring the water to a boil over medium-high heat, add a lid, and allow them to process in the boiling water for 10 minutes (adjust the time based on the altitude).
  • Remove the canner lid and allow them to sit for 5 minutes before carefully using canning jar tongs to remove the jars from the water and set them onto a clean kitchen towel to drain and cool undisturbed for 24 hours.
  • Once cooled, check the jars seals (the middle part of the lid should not pop up and down when pressed), then store them in a cool, dark location (like your pantry) for up to a year.
    Any unsealed jars can be reprocessed with new lids or transferred to the refrigerator to use within a month.

Video

Notes

If using powdered pectin, you can prepare it and use it as liquid pectin. Mix 6 Tbsp powdered pectin and 1/2 cup water in a small pot. Boil for 1 minute, stirring constantly. Pour into a measuring cup and add enough cold water to reach 1 cup.
How to Store
Fridge: Aim to use it within 3-4 weeks. If you’ve reduced the sugar or lemon juice (which are natural preservatives), the shelf life may be shorter.
Freezer: Make sure the jars are freezer-safe (or use freezer bags), and store them for 4-6 months.
Canned: Once processed and left to cool, the jam is shelf-stable and can be stored, labeled, in a cool dark location for up to 12 months. Once opened, transfer the jar to the fridge to use within 3-4 weeks.
How to Add Flavor to Blueberry Jam?
  • Vanilla: You can add pure vanilla extract (or paste) or some vanilla powder at the end.
  • Orange: Add some orange zest for a bright, tangy, citrusy flavor.
  • Ginger: Use finely grated ginger to taste, starting with about ½ teaspoon.
  • Spices: You can experiment with several, including cinnamon, nutmeg, or cloves. Start with just a tiny pinch and increase to taste.
  • Jalapeño: Finely diced (seeds removed) to add heat.
  • Almond extract: Stir this in off the heat at the end for a subtle nutty flavor depth.
  • Alcohol: A splash of alcohol like Amaretto or orange liqueur will create a more complex, full-bodied flavor.
  • Fresh mint: Finely chopped to add a refreshing, herbal minty undertone.
  • Rosemary: Add a single 3-4-inch sprig to the saucepan, removing it before jarring the jam.
Can I make sugar-free blueberry jam? As this recipe adds pectin, you can use a sugar alternative (erythritol, monk fruit sugar, etc.) without ruining the “set,” though you may need additional pectin. However, note that sugar is a natural preservative, too, so the sugar-free or low-sugar jam will spoil faster and should be stored in the fridge.
Do I need to add pectin? Blueberries and lemons both actually contain pectin and so, along with sugar, will thicken the jam on their own. However, it will be a much softer set than if you use the pectin and will require a longer cooking time for it to thicken and moisture to evaporate (15-20 minutes, stirring constantly).
Check the blog post for more tips and serving recommendations!
Course: Condiment, DIYs
Cuisine: Global
Freezer friendly: 4-6 Months
Shelf life: 1 year (Canned), 3-4 Weeks (Fridge)

Nutrition

Serving: 2Tbsp, Calories: 81kcal, Carbohydrates: 21g, Protein: 0.2g, Fat: 0.1g, Saturated Fat: 0.01g, Polyunsaturated Fat: 0.03g, Monounsaturated Fat: 0.01g, Sodium: 0.4mg, Potassium: 18mg, Fiber: 1g, Sugar: 20g, Vitamin A: 12IU, Vitamin C: 3mg, Calcium: 2mg, Iron: 0.1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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