01 -
Fill a boiling water canner with enough water to cover filled jars by at least 1 inch. Bring to a simmer and keep clean jars hot until filling.
02 -
Work in batches. Lower peaches into boiling water for 30-60 seconds, then transfer to ice water for 1 minute. Slip off the skins.
03 -
Halve or slice the peaches and remove pits. Hold the prepared fruit in water mixed with bottled lemon juice or ascorbic acid to reduce browning.
04 -
Combine 10 1/2 cups water and 1 1/4 cups sugar in a large pot. Bring to a boil and stir until the sugar dissolves.
05 -
Drain the peaches. Add them to the boiling syrup in batches and heat until the liquid returns to a boil.
06 -
Pack hot peaches into hot jars, placing halves cut side down when possible. Cover with hot syrup, leaving 1/2-inch headspace. Remove bubbles, adjust headspace, wipe rims, and apply lids fingertip tight.
07 -
Place jars in the boiling water canner. When the water returns to a full boil, process hot-packed quarts for 25 minutes at 0-1,000 feet. Adjust time for higher altitude.
08 -
Turn off heat, remove the canner lid, and wait 5 minutes. Lift jars onto a towel and rest for 12 hours. Check seals, remove bands, label, and store in a cool dark place.