Blueberry Jam Without Pectin (Easy Canning Recipe)

Name: Blueberry Jam Without Pectin
Prep time: 5 min
Cook time: 30 min
Total time: 45 min
Ingredients: 4 cups blueberries; 2 cups white sugar; 3 tablespoons lemon juice

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This blueberry jam without pectin is a simple homemade jam made with just blueberries, sugar, and lemon juice, no pectin required. Blueberries are naturally low in pectin on their own, so this small batch recipe leans on the lemon juice, which is high in pectin, plus of sugar and a longer simmer to reach that perfect gel stage.

Unlike jam recipes that call for a box of pectin, this one uses a lot less sugar. And just three ingredients you likely already have on hand.

A Quick Look At The Recipe

Recipe Name: Blueberry Jam Without Pectin
Cook Time: 30 minutes
Servings: 3 half-pint jars (3 cups)
Main Ingredients: Blueberries, sugar, lemon juice
Dietary Info: Vegan, gluten-free
Difficulty Level: Easy

Close view of two sealed jars of dark blueberry jam on a gray counter with a beige checkered towel behind them.

I love making this no pectin blueberry jam every summer when fresh blueberries are at their best. With less sugar than most jam recipes, nothing gets in the way of that real blueberry taste.

Once you try it, you’ll want to fill your pantry so you can enjoy the taste of blueberries all year long.

If you’d rather use pectin for a firmer set, my Homemade Blueberry Jam With Pectin recipe is a great option too. And if you’ve got peaches on hand as well, my Easy Peach Jam is another simple one to try.

Why You’ll Love This Blueberry Jam Without Pectin

Just 3 ingredients: Just blueberries, sugar, and lemon juice.
Small batch: This recipe makes a manageable 3 jars, perfect for trying out or keeping on hand without a huge canning session.
Natural gel: The blueberries and lemon juice work together to set the jam naturally, no need for added pectin.
Easy to double: Love this jam? The recipe doubles easily if you want a bigger batch.

Ingredients

4 cups blueberries
2 cups white sugar
3 tablespoons lemon juice

How To Make Blueberry Jam Without Pectin

Simmer The Blueberries

Fresh blueberries in a stainless steel pot ready to be cooked down for homemade blueberry jam.

Blueberries simmering in a stainless steel pot with purple syrup coating the sides.

Put the blueberries and lemon juice in a large pot and gently bring to a simmer over low heat. Until they release their juice.

Add The Sugar

Blueberries and juice in a stainless steel pot with a mound of sugar added on top for making blueberry jam.

Once the blueberries have released their juices, you can mash them with a potato masher for a smoother jam, if you’d like. This step is optional. Then add the sugar and turn the heat up to medium-high.

Cook To The Gel Stage

Blueberry jam cooking in a stainless steel pot with softened berries and dark purple syrup thickening around the edges.

Cook until your jam reaches the gel stage, about 20 minutes. Then remove from the heat, skim off any foam, and stir the jam for 5 minutes. This helps to keep the fruit from floating.

Jar

Pour the jam into your prepared jars, leaving 1/4 inch of headspace. Place the lids on and let the jars cool to room temperature, then store in the fridge. For long-term storage, follow the canning directions below.

Canning Blueberry Jam

Ladle the blueberry jam into your prepared canning jars, leaving 1/4 inch of headspace.

Remove any air bubbles, and wipe the jar rims clean. Then place the lids on fingertight.

Process them in your water bath canner for 10 minutes. Then turn off the heat and let the canner sit for 5 minutes. This will help prevent the jars from siphoning.

Using your jar lifters, remove the jars from the canner and place them onto a towel. Leave the jam jars to sit undisturbed for 24 hours.

Then check the seals, any jars that didn’t seal should be placed into the fridge to use up first. For the jars that did seal, remove the rings and wash the jars with warm soapy water. Then dry and label, store in a cool, dark place.

Spoonful of thick blueberry jam held over an open jar with a beige checkered towel in the background.

Recipe Notes & Tips

Testing for gel stage: If you’re not sure your jam has reached the gel stage, try the cold plate test. Place a small spoonful on a chilled plate, wait a few seconds, and run your finger through it. If it wrinkles and holds its shape, it’s ready.
Doubling the recipe: This blueberry jam recipe can easily be doubled if you want a bigger batch, just keep in mind it may take a bit longer to reach the gel stage.
Storage: Properly processed jars will keep in the pantry for up to a year. Once opened, store in the fridge and use within a few weeks.
Mashing the berries (optional): I like to mash the blueberries with a potato masher once they’ve released their juices. It breaks the berries down a bit for a smoother jam, but you can skip this step and leave them whole if you prefer more texture. Whole berries will give you more jam since they are bulkier.

Storage Options

Freezer Jam: Pour the jam into freezer-safe containers, leaving room for expansion. Store in the freezer for up to 6 months.
Refrigerator Jam: Ladle into jars and let it cool to room temperature. Then store in your fridge for up to 3-4 weeks.
Canned Jam: Follow the water bath instructions and store your jam in the pantry for 12 to 18 months. Refrigerate after opening.

Substitutions

Frozen blueberries: Frozen blueberries work well in place of fresh ones. There is no need to thaw them first.
Lemon juice: Bottled lemon juice works just as well as fresh for this recipe.

Variations

Spiced blueberry jam: Add a cinnamon stick or a pinch of ground cinnamon while simmering for a warm, spiced flavor.
Blueberry lemon jam: Add a bit of lemon zest along with the juice for a brighter, more citrusy jam.
Mixed berry jam: Swap out a cup or two of blueberries for blackberries or raspberries.

FAQ’s

Yes! Blueberries are actually low in natural pectin on their own, but the lemon juice in this recipe is high in pectin and adds the acid needed to help everything set. Combined with the sugar and a longer simmer, that’s enough to reach a good gel without any added pectin.

Use the cold plate test. Place a small spoonful of jam on a chilled plate. If it wrinkles when you run your finger through it, it’s ready. Or use a candy thermometer and cook until the jam is 220F.

Yes, frozen blueberries work well and don’t need to be thawed before using.

Properly processed and sealed jars will keep in the pantry for up to a year. Once opened, store in the fridge and use within a few weeks.

Blueberry Jam Without Pectin

This blueberry jam without pectin is a simple homemade jam made with just blueberries, sugar, and lemon juice. A small batch recipe that lets the fruit's natural flavor shine!

Prep Time 5

Cook Time 30

Canning Time (optional) 10

Total Time 45

Serving Size servings (3 cups)

Ingredients

4 cups blueberries
2 cups white sugar
3 tablespoons lemon juice

Instructions

Put the blueberries and lemon juice in a large pot and gently bring to a simmer over low heat.
When the blueberries have released their juices, mash them with a potato masher for a smoother jam (optional), then add the sugar and turn the heat up to medium-high.
Cook until your jam reaches the gel stage, about 20 minutes.
Pour the jam into your prepared jars, leaving 1/4 inch headspace. Let the jars cool and then store in the fridge. Or, for long-term storage, process in a water bath canner to make it shelf-stable.

Canning Instructions

To preserve your blueberry jam, ladle the jam into your prepared canning jars, leaving 1/4 inch of headspace. Wipe the rims clean, and place the lids on finger-tight.
Process in a water bath canner for 10 minutes. Then turn off the heat and let the jars cool in the canner for 5 minutes, this helps to prevent siphoning. Then remove them and place the jars on a towel.
After 24 hours, check the jars to make sure they have sealed. Any jars that didn’t seal, place into the fridge to use up first.

Notes

This recipe can be doubled, but don’t cook more than 8 cups of blueberries at a time, or it won’t set properly.
If you are over 6,000 feet in elevation, process for 15 minutes in a water bath canner.

Nutrition

These values are from a nutritional database and automatically calculated, and should only be used as an approximation.

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Kim

Kim Mills is a homeschooling mom of 6 and lives on an urban homestead in Ontario, Canada. Blogging at Homestead Acres she enjoys sharing tips to help you save money, grow and preserve your own food.