Making Blueberry Jam from Frozen Blueberries
For more information, see my post How to Make Jam from Frozen Fruit.
My friend Audrey just moved out of state and gave me the fruit she had picked and frozen from her garden this summer. I came home with lots of blueberries and peaches that would take up just about the last of my freezer space. Well, that freezer space will be needed for Cornish X meat chickens soon, so I needed to do something else with the fruit.
I started by pulling the frozen blueberries out of the freezer and letting them thaw slightly while I assembled my materials and heated the water bath canner. I sterilized my jelly jars, in the canner once it started boiling, put the metal lids in sterilized hot water, and then started on the jam.
Blueberry Jam Recipe
- 1 pkg Sure Jell No Sugar Needed pectin
- 6 1/2 cups blueberries
- 1/2 cup water
- 4 1/2 cups sugar
Put the partially frozen blueberries and water into a medium large stainless steel sauce pan over medium high heat. While this is heating, measured 1/2 cup of sugar into a small bowl and stir in the packet of pectin. Measure the 4 cups of sugar into a separate container.
When the blueberries start to thaw (or immediately, if not frozen), add the sugar and pectin mixture. Stir and heat to a rolling boil. Add remaining sugar all at once and stir. Heat to a rolling boil. Stir and boil for 1 minute, making sure jam doesn’t burn on bottom. Turn heat off and ladle into sterile half pint jelly jars, leaving 1/4″ headspace. Wipe rim, place metal lid and ring on jar. Screw on just until tight. Process in water bath canner for 5 minutes for elevations of 1,000′ or less, 10 minutes for 1001- 6000′, and 15 minutes for over 6000.’
Use a jar lifter to remove hot jam from canner. Set on heavy cloth on counter to cool. Make sure lids seal. There will be a pinging sound for each lid that seals, and the lid will not move up and down when pressed. Makes approximately 7 half pint jars per batch.
I sent a case of jam off to Massachusetts with my friend Audrey and her family. I hope they enjoy the fresh taste of homemade jam in their new home!