Canned Plum Jam Recipes

CANNED PLUM JAM

Steps:

• Prepare jars as described in General Rules.
• Combine plums, sugar, lemonjuice, and salt in a stockpot overhigh heat. Bring to a boil,mashing with a potato masher.Skim scum off top.
• Boil, skimming and stirring frequently,until bubbles slow, youcan see chunks of fruit showingthrough top, and mixtureclings to a spoon, falling offin languid clumps, 10 to 12 minutes.Pick up and discard skinswith a fork, if desired.
• Lift jars out of hot water oneat a time, draining water. (See General Rules for how-to's.) Ladlehot jam into hot jars using awide-mouth funnel, leaving1/2-inch headspace. Slide a nonmetallicspatula or chopstickbetween jam and jar to releasetrapped air bubbles.
• Wipe rim and threads of jarwith a clean, damp cloth. Removelid from hot water. Placelid on jar. Screw band downevenly and firmly, just until resistanceis met. Place in cannerand lower into water.
• Put lid on canner. Bring waterto a boil. Start keeping time afterwater comes to a rolling boil.Process 1/2 pints 10 minutes at agentle but steady boil.
• Turn off heat and remove cannerlid. Let canner cool 5 minutes,then remove jars and set themupright on a dry towel or rack.Do not retighten bands. Let jarscool 12 to 24 hours.
• After jars have cooled, checklids for a good vacuum seal by pressing on center of each. If center is pulled down and does not flex, remove band and gently try to lift lid off with your fingertips. If lid does not flex and you cannot lift it off, seal is set. Wipe lid and jarsurface with a clean, damp clothto remove food particles andresidue. Label. Store jars in acool, dry, dark place.

LOW SUGAR PLUM JAM

Steps:

• Start by preparing jars and getting water in the canner heating. You want the canner hot, but not boiling, when the jars are ready to be processed.See full water bath canning instructions here.

PLUM JAM

Steps:

• Place the plums and water into a large pot, and bring to a boil. Reduce heat to medium-low, cover, and simmer for 5 minutes. Stir in the sugar, and add butter to reduce foaming, if needed. Bring the mixture to a full, rolling boil over high heat, stirring constantly, and then mix in the pectin quickly. Return the jam to a full boil, and boil for 1 minute, stirring constantly. Remove from heat, and skim off and discard any foam.
• Sterilize the jars and lids in boiling water for at least 5 minutes. Pack the plum jam into the hot, sterilized jars, filling the jars to within 1/8 inch of the top. Run a knife or a thin spatula around the insides of the jars after they have been filled to remove any air bubbles. Wipe the rims of the jars with a moist paper towel to remove any food residue. Top with lids, and screw on rings.
• Place a rack in the bottom of a large stockpot and fill halfway with water. Bring to a boil over high heat, then carefully lower the jars into the pot using a holder. Leave a 2 inch space between the jars. Pour in more boiling water if necessary until the water level is at least 1 inch above the tops of the jars. Bring the water to a full boil, cover the pot, and process for 10 minutes.
• Remove the jars from the stockpot and place onto a cloth-covered or wood surface, several inches apart, until cool. Once cool, press the top of each lid with a finger, ensuring that the seal is tight (lid does not move up or down at all). Store in a cool, dark area. Refrigerate opened jars for up to 3 weeks.