Low-Sugar Peach Jam Recipe for Preserving Fresh Flavor

To me, a ripe peach picked straight from the tree is one of nature’s simplest pleasures. Childhood summers are full of memories of warm, sun-ripened peaches from my grandfather’s garden — peeled, sliced and dusted with a little sugar. This low-sugar peach jam recipe preserves that fresh summer flavor so you can enjoy it year-round.

This recipe highlights the fruit with just four core ingredients: peaches, sugar, lemon juice and low-sugar (or no-sugar) pectin. It’s straightforward, adaptable, and yields bright, flavorful jam without the heavy amount of sugar in traditional recipes.

I make this jam whenever local peaches are in season, which varies by region from early to late summer. Yellow clingstone peaches are ideal—they’re tender, juicy and have that classic peach flavor and color. If fresh peaches aren’t available, frozen peaches can be substituted; just thaw them before use.

For each batch you’ll need about 3 1/2 pounds (roughly 10–12 medium peaches). This recipe makes approximately six half-pint jars.

Choose peaches that are fully ripe but not overripe. A ripe peach should have a fragrant aroma and give slightly when pressed, without soft spots or browning.

Before cooking, gather basic canning supplies if you plan to preserve the jam:

• Water bath canner with rack
• Six half-pint Mason jars with lids and rings
• Jar lifter or tongs
• Canning funnel
• Ladle

Also have these kitchen tools on hand:

• Colander
• Potato masher (or food processor/immersion blender for a smoother jam)
• Large, wide pot for cooking the jam
• Wooden spoon or heatproof silicone spatula
• Large spoon for skimming foam
• Measuring cups and spoons
• Small ceramic plates (for testing set)
• Clean kitchen towels

Inspect and wash 6–7 half-pint jars, checking rims for chips that can prevent sealing. Clean jars in the dishwasher or with hot soapy water and set them on a clean towel. Place two small ceramic plates in the refrigerator to cool; you’ll use them to test the jam’s set.

Peeling peaches is easiest after blanching. Drop 4–5 peaches at a time into boiling water for about one minute, then transfer them immediately to a bowl of ice water for 1–2 minutes. The skins should slip off easily. Cut each peach in half, remove the pit, then peel and roughly chop into 1/2-inch pieces.

You’ll need about eight cups of chopped peaches to yield roughly five cups of mashed fruit. Mash the peaches with a potato masher to the texture you prefer—leave some chunks for a rustic jam or puree for a smoother spread. You can mash before and during cooking to control the final consistency.

Low-sugar or no-sugar pectin is essential when reducing sugar because sugar traditionally acts as a preservative and helps prevent mold. Look for the low/no-sugar pectin in the canning aisle and follow package directions for substitution if using bulk pectin.

To cook the jam: combine the mashed peaches, lemon juice, pectin and 1/4 cup of the sugar in a large, wide pot. Heat over medium-high and bring to a full rolling boil (a hard boil that doesn’t subside when stirred), stirring constantly so the fruit doesn’t scorch. Once at a full boil, add the remaining sugar to total 3 1/2 cups, stir well, and return to a full boil for one minute while stirring.

After boiling the required time, remove the pot from heat and test the set by spooning a small amount onto a chilled plate. If it thickens to your liking, the jam is ready. If it remains too runny, boil one more minute and test again. If still too loose, you may need an additional 1/4 package of pectin and another minute of boiling, though this is rarely necessary.

Skim off any foam with a large spoon. Let the jam rest about 10 minutes, then stir gently to distribute fruit pieces so they won’t rise to the top in the jars. Prepare lids and rings—modern guidance says lids do not require boiling; just ensure they are clean and free of dust.

Using a ladle and canning funnel, fill jars leaving about 1/4 inch headspace. Wipe rims with a clean towel, apply lids and screw bands until fingertip-tight (not overly tight).

Place jars on the rack in your water bath canner and ensure water covers the tops by at least one inch. Process jars according to altitude: 5 minutes at sea level, 10 minutes above 1000 feet, and 15 minutes above 6000 feet. After processing, remove jars with tongs and set them upright on a clean towel to cool undisturbed for several hours or overnight. You’ll hear lids pop as they seal; a sealed lid will be concave and will not flex when pressed. Remove rings after jars are fully sealed to prevent trapped moisture and potential rust.

Homemade low-sugar peach jam is a rewarding project and makes a thoughtful gift. Store sealed jars in a cool, dark pantry for up to a year; refrigerate after opening. Enjoy the bright peach flavor on toast, yogurt, or as a topping for desserts.

Disclosures: The author was not compensated for this post. The post may contain affiliate links; purchases through them may provide a small commission to help cover publishing costs.

Photos by Marsha Maxwell, Abramova Elena/Shutterstock.com.