Remove the warmed jars from the canner and drain them.
Ladle the hot apple butter into pint-sized jars, leaving 1/4 inch headspace.
Use a canning funnel, if available, to keep the jar rims clean.
Wipe each jar rim thoroughly to remove any apple butter residue.
Place the lids centered on the jar rims.
Screw the bands on until finger tight.
Using a jar lifter, carefully lower the filled jars into the boiling water in the canning pot.
Ensure the water covers the tops of the jars by at least 1 inch.
Return the water to a simmer before beginning the processing time.
Process pint jars for 15 minutes at 0 to 1,000 feet altitude.
Process pint jars for 20 minutes at 1,001 to 6,000 feet altitude.
Process pint jars for 25 minutes at over 6,000 feet altitude.
Remove the jars from the water using a jar lifter.
Transfer the jars to a solid, towel-covered surface.
Allow the jars to cool undisturbed for 24 hours.
After cooling, check the seals.
The lids should be pulled down tightly and should not flex when pressed.
If any lid flexes or pops, the jar did not seal properly.
Refrigerate any unsealed jars and use them first.
Remove the rings from properly sealed jars.
Wash the outside of the jars if needed.
Store sealed jars in a cool, dark place.