Traditional Blueberry Jam - Auto Canner

Traditional Blueberry Jam - Auto Canner



Preserving method: Water bath canning

Makes about 6 half-pints (8 oz) of jam


You will need

  • 4 cups crushed blueberries (about 2 lbs or six 6 oz containers)
  • 3 tbsp bottled lemon juice
  • 4-1/2 tbsp Ball® brand  RealFruit™ Classic Pectin
  • 1/2 tsp butter or margarine (optional)
  • 5 cups granulated sugar
  • 6 Ball® brand Half Pint (8 oz) Glass Preserving Jars with Lids and Bands
  • Required: Ball® freshTECH Automatic Home Canning System


*Note that this recipe will only perform as expected when using the Ball® freshTECH Automatic Home Canning System. 

Pre-heat your empty jars

  1. Remove Inner Pot from Appliance. Remove Rack; set aside. Fill Inner Pot with warm tap water to fill line. Return Inner Pot to Appliance. Place Rack back into Inner Pot. Place empty jars onto Rack in Inner Pot. Set preserving lids and bands aside in your work space. Close and lock Appliance Lid.
  2. Press Pre-Heat button, then press Start. The red Pre-Heating light will illuminate, and the Appliance will begin pre-heating your jars. In the meantime, you can start making your jam. Jars will be pre-heated when the green Ready light is flashing. Keep jars in Appliance, with Lid closed and locked, until ready to fill with jam.

Make your jam

  1. Wash blueberries in cool, running water and drain. Remove stems. Crush blueberries one layer at a time using a potato masher. Measure required quantity of crushed blueberries and remaining ingredients for your recipe; set aside.
  2. Place crushed blueberries and lemon juice in an 8-quart saucepan. Gradually stir in Ball® brand RealFruit® Classic Pectin. Add butter, if using. Bring mixture to a full rolling boil that cannot be stirred down, over high heat, stirring constantly.
  3. Add entire measure of sugar, stirring to dissolve. Return mixture to a full rolling boil. Boil hard 1 minute, stirring constantly. Remove from heat. Skim foam, if necessary, from top of jam.

Preserve your jam

  1. Unlock and open Appliance Lid.
  2. Remove one hot jar. Close Lid, but do not lock, to keep remaining jars hot. Ladle hot jam into hot jar, leaving 1/4-inch headspace. Wipe any jam from the rim of the jar. Center new lid on jar. Twist on band until fingertip tight. Return filled jar onto Rack in Inner Pot.
  3. Repeat step 2 until all jars are filled with jam and returned to Inner Pot. Close and lock Lid.
  4. Press Jams & Jellies, then press Recipe 1. Press Start to begin preserving.
  5. The applience will start sensing your recipe, indicated by the orange Sensing light. Then, the preserving phase will begin, indicated by the orange Preserving light. When your appliance beeps and the green Ready light is flashing, your jam has been successfully preserved! Press Stop. Unlock and open Lid.
  6. Remove jars from Inner Pot using jar lifter and place upright on a towel. Allow to cool, undisturbed, for 12 to 24 hours. Check lids for seal. Label and store your jars.