Hot-Pack Method
Dip yellow-flesh peaches in boiling water for 30 to 60 seconds until skins loosen. Transfer to cold water, slip off skins, halve, remove pits, and slice if desired.
Hold peeled fruit in ascorbic acid solution if desired to limit browning. Prepare and boil the selected syrup, water, apple juice, or white grape juice.
Drain the fruit, place it in the boiling packing liquid, and return to a boil.
Fill hot jars with hot fruit and liquid, placing peach halves cut-side down and leaving 1/2-inch headspace. Remove bubbles, adjust headspace, wipe rims, and apply compatible lids.
Process hot-packed pints for 20 minutes or quarts for 25 minutes at 0–1,000 ft in a boiling-water canner. Increase time for altitude exactly as specified by NCHFP.
Cool jars undisturbed for 12 to 24 hours and verify seals. Refrigerate any unsealed jars.