Canning blueberry jam is quicker and easier than you might think, and this recipe is so delicious.
In this post, I’ll show you how to make it from scratch with just a few simple tools and ingredients.
There’s nothing better than homemade blueberry jam right out of the jar, and canning it yourself is simple.
If your blueberry bush has produced more fruits than you can eat, or you find a good bulk deal at the grocery store, it’s time to try canning jam.
Below I will show you exactly how to do it with easy-to-follow steps you can use to make your own at home.
Blueberry Jam Canning Recipe
This homemade blueberry jam recipe is so satisfying and versatile, and I made it specifically for canning.
It’s scrumptious on toast, inside a peanut butter sandwich, dalloped on top of waffles, or added to your favorite dessert. The options are truly endless.
With a few simple ingredients and common kitchen tools, you will be on your way to making your own.
Related Post: How To Grow Blueberries In Pots Or The Garden
Ingredients For Canned Blueberry Jam
I created this blueberry jam recipe to be simple to make and easy for canning. It’s quick to pull together with only 4 ingredients that you might already have on hand.
- Blueberries – Choose fresh in-season fruits that are plump and ripe for the best results. If you don’t have fresh, then you can substitute with frozen blueberries.
- Sugar – This helps your jam thicken into a gel, and also enhances the natural sweetness of the blueberries. If you want, you could substitute half or all of the sugar with Splenda or stevia, but the texture may end up being thinner.
- Lemon juice – This works with the sugar to thicken the texture and also affects the pH of the jam, which allows it to set. Be sure to use bottled rather than fresh-squeezed, because it has a more consistent level of acidity.
- Liquid pectin – This is an optional ingredient, but does assist in thickening, and shortens the cooking time. If you opt to omit it, you may need to cook your jam a few minutes longer to allow more liquid to evaporate so it can set into a gel. I used liquid pectin for this recipe, as it helps preserve the flavor better than powder. It’s important to note that the liquid and powder pectins are not interchangeable measurement and timing wise. So I don’t recommend substituting with powder here.
Tools & Equipment Needed
Below is a list of all the items you’ll need. Gather everything before you start to simplify the process. You can see my full list of canning tools and supplies here.
- Water bath canner
- Pint canning jars
- New jar lids
- Canning funnel
- Measuring spoons
- Jar lifting tool
- Large mixing bowl
- Potato masher
- Small plate
- Dissolvable labels (optional)
- OR Permanent marker (optional)
Water Bath Canning Blueberry Jam
Since the blueberries and lemon juice add acidity to this jam recipe, it’s safe for water bath canning.
Don’t try to use a pressure canner, because the extreme heat will damage the integrity of the jam, leaving it mushy and runny.
How To Store Canned Blueberry Jam
If you don’t want to can your blueberry jam you could use it right away. After it cools from cooking, eat it while it’s still warm, or put it into the refrigerator. Once open, it’s good for a few months in the fridge.
Otherwise allow the jars to cool to room temperature before storing them in a cool dark place, like a pantry, cabinet, or shelf.
How Long Does Canned Blueberry Jam Last?
When processed and sealed properly, your jars of canned blueberry jam will last for up to 1 year. Before eating it, make sure to check that the lid still has a tight seal.
Related Post: How To Make Blueberry Jelly: Easy Recipe
Below are my answers to some of the most common questions I get asked about how to can blueberry jam.
Does blueberry jam need to be pressure canned?
No, blueberry jam does not need to be pressure canned, and you should not try processing it that way. That method is too hot, and will end up breaking down the thick gel texture of the jam, making it runny. Instead, always process it in a boiling water bath.
How do you thicken homemade blueberry jam for canning?
This homemade blueberry jam will thicken naturally as you cook it from the sugar and lemon juice. You can also add liquid pectin for thickening.
Do you have to crush blueberries for jam?
Yes, I do recommend that you crush the blueberries for jam. You don’t have to be diligent and crush every single one. But it helps to release the flavor and juices from the fruits, which aid in thickening while cooking, and makes for a better overall consistency.
Canning your own homemade blueberry jam is effortless with my recipe. Soon you’ll have several jars of deliciousness for your whole family to enjoy.
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More Food Canning Posts
- How To Can Strawberry Jam (With Recipe!)
- How To Make Strawberry Jelly: Easy Recipe
- Canning Blueberries: Easy Recipe
- How To Can Strawberries
Share your favorite blueberry jam canning recipe in the comments section below.