How To Make Seedless Blackberry Jam

Blackberry jam, with its deep, rich flavor and vibrant color, is a delightful treat that can elevate any breakfast or dessert. Making seedless blackberry jam at home allows you to control the ingredients, ensuring a delicious and natural spread. If you’re looking to create a smooth, flavorful jam without the seeds, follow this comprehensive guide to making seedless blackberry jam. From selecting the best blackberries to preserving your jam for future use, this article covers everything you need to know.

Choosing the Right Blackberries

The quality of your blackberry jam depends significantly on the quality of the blackberries you use. To ensure a successful batch of seedless blackberry jam:

1. Select Ripe Blackberries

Choose blackberries that are ripe and juicy. They should be deep purple or black in color, plump, and slightly soft to the touch. Avoid berries that are underripe, as they may be too tart, or overripe, as they may be mushy.

2. Inspect for Freshness

Check the blackberries for any signs of mold or spoilage. Fresh berries should be firm and free of blemishes. If you find any damaged or moldy berries, discard them before starting your jam-making process.

Preparing the Blackberries

Proper preparation of the blackberries is crucial for making smooth, seedless jam.

3. Wash the Blackberries

Rinse the blackberries gently under cool running water to remove any dirt or residues. Be careful not to crush the berries during washing. After rinsing, pat the berries dry with a paper towel.

4. Remove Stems

Remove any stems or leaves from the blackberries. These can be easily removed by hand or with the help of a small knife. Ensuring that all stems are removed will help prevent any unwanted textures in your jam.

Extracting Blackberry Juice

To make seedless blackberry jam, you need to extract the juice from the berries and strain out the seeds.

5. Cook the Blackberries

Place the blackberries in a large saucepan. Cook them over medium heat, stirring occasionally, until the berries break down and release their juice. This should take about 10-15 minutes.

6. Mash the Blackberries

Once the berries are softened and have released their juice, use a potato masher or the back of a spoon to mash them thoroughly. This helps to release more juice and ensures that the berries are fully broken down.

7. Strain the Juice

To remove the seeds, pour the mashed blackberries through a fine-mesh sieve or cheesecloth into a large bowl or pot. Use the back of a spoon to press the mixture through the sieve, leaving the seeds behind. You can also use a food mill for this step if you have one.

8. Collect the Juice

Collect the strained blackberry juice in a clean bowl. You should end up with a smooth, seedless liquid that will be used for making your jam.

Making the Jam

Once you have your seedless blackberry juice, you’re ready to make the jam.

9. Prepare Your Canning Jars

Before you start making the jam, prepare your canning jars. Wash them in hot, soapy water and rinse thoroughly. Sterilize the jars by placing them in a pot of boiling water for 10 minutes or using a dishwasher with a sterilizing cycle.

10. Cook the Jam

In a large pot, combine the blackberry juice with granulated sugar and lemon juice. The typical ratio is 1 cup of juice to 1 cup of sugar, but you can adjust to taste.

11. Boil the Mixture

Bring the mixture to a boil over medium-high heat, stirring constantly. Continue to cook until the mixture reaches 220°F (104°C) on a candy thermometer. This temperature ensures that the jam will set properly.

12. Test for Doneness

To test if your jam is ready, place a small spoonful of the mixture on a plate and let it cool for a minute. Run your finger through the center of the cooled jam. If it wrinkles and holds its shape, it’s ready. If not, continue boiling and test again in a few minutes.

Preserving the Jam

Proper preservation is key to extending the shelf life of your homemade blackberry jam.

13. Pour the Jam into Jars

Once the jam has reached the desired consistency, pour it into the prepared sterilized jars while still hot. Leave about 1/4-inch headspace at the top of each jar to allow for expansion during processing.

14. Seal the Jars

Wipe the rims of the jars with a clean, damp cloth to remove any residue. Place the lids on the jars and screw on the metal bands until they are fingertip-tight.

15. Process the Jars

Process the jars in a boiling water bath to ensure a proper seal. Place the jars in a large pot of boiling water, making sure they are fully submerged. Boil for 5-10 minutes. The processing time may vary depending on your altitude, so adjust accordingly.

16. Cool and Store

Remove the jars from the water bath and place them on a clean towel or cooling rack. Let them cool completely at room temperature. Once cooled, check the seals by pressing down on the center of each lid. If it doesn’t pop back, the jar is properly sealed. Store sealed jars in a cool, dark place. Unsealed jars can be refrigerated and used within a few weeks.

Tips and Tricks

17. Adjust Sweetness and Acidity

Feel free to adjust the sweetness of your jam by adding more or less sugar. If you prefer a tart flavor, you can also add a little more lemon juice.

18. Use Pectin for Thicker Jam

If you prefer a thicker jam, consider using commercial pectin. Follow the instructions on the pectin package for the correct proportions and steps.

19. Experiment with Flavors

Get creative by adding spices like cinnamon or cloves, or mix in other fruits like raspberries or blueberries for a unique twist on traditional blackberry jam.

20. Label Your Jars

Label your jars with the date and contents to keep track of when they were made. This helps you use older jars first and ensures that you enjoy your jam at its freshest.

Conclusion

Making seedless blackberry jam at home is a rewarding process that results in a delicious, homemade spread perfect for any occasion. By selecting ripe blackberries, carefully extracting juice, and following the proper canning techniques, you can create a smooth and flavorful jam that rivals store-bought varieties. Enjoy the sweet taste of summer all year round with your homemade seedless blackberry jam, and savor the satisfaction of preserving nature’s bounty in your kitchen.

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