Sealed jars may be stored in a cool, dry, dark place for up to one year. Unsealed jars must be refrigerated and jam must be used within a few weeks. For an even quicker jam, skip the canning instructions, ladle hot jam into clean jars, and store the jam in the refrigerator for up to two weeks.
06Drain hot water from jars and shake out excess water. Place jars on cutting board. Ladle hot jam into each jar, leaving 3/4-inch space at top. Slide flat plastic spatula between jam and jar to eliminate air bubbles. Clean rim of each jar with damp cloth. Using tongs, lift hot lids from saucepan, 1 at a time, shake dry, and place atop jars. Seal each with screw band, twisting to close but not too tightly. Return filled jars to pot of hot water.
07Add water to pot, if necessary, to cover jars by at least 1 inch. Cover pot and bring to boil; reduce heat and boil gently 10 minutes. Turn off heat. Wait 5 minutes; use tongs to remove jars without tilting. Place upright on towel; cool completely at room temperature. Jam will thicken as it cools.
08Check lids for seal by pressing each lightly. Lids of sealed jars will be concave and show no movement when pressed.