Pear Jam Recipe — Soft, Glossy, and Gently Sweet
The quality of the fruit is the most important variable in this recipe. Ripe pears produce a jam with true, rounded flavor. Underripe pears produce something flat and faintly starchy, no matter how long you cook them.
Bartlett (Williams) pears are the most recommended variety for jam — aromatic, sweet, and they soften well during cooking. Bosc works beautifully too, producing a slightly firmer set and a more caramel-like undertone. Anjou is a reliable middle-ground option, especially when Bartlett isn’t in season.
To check for ripeness, press gently near the stem end. A ripe pear gives slightly without being mushy. It should also smell noticeably sweet and fragrant. If your pears need a day or two, leave them at room temperature — don’t refrigerate them to ripen.
Avoid varieties with a noticeably gritty texture, as these don’t break down as smoothly and can leave an unpleasant granular quality in the finished jam.
The Recipe
Yield: 3–4 half-pint jars
Prep time: 20 minutes
Cook time: 40 minutes
Total time: About 1 hour
Ingredients
- 4 cups ripe pears, peeled, cored, and finely chopped (about 2½ lbs whole pears)
- 2 cups granulated sugar
- 2 tablespoons fresh lemon juice
- ½ teaspoon lemon zest
- 1 packet (1.75 oz) powdered fruit pectin
- ¼ teaspoon vanilla extract (optional, but recommended)
- Pinch of fine sea salt
Instructions
1. Prep the pears. Peel, core, and finely chop the pears. For a smoother preserve, mash lightly with a potato masher or pulse briefly in a food processor, leaving some small pieces for texture. For a chunkier result, simply chop and leave as is.
2. Sterilize your jars. Wash half-pint jars and lids in hot soapy water, then keep them warm in a low oven (200°F) until ready to fill. Set up your water-bath canner and begin heating the water.
3. Combine and bring to a boil. In a wide, heavy-bottomed pot, combine the chopped pears, lemon juice, lemon zest, and powdered pectin. Stir well to combine. Bring to a full rolling boil over medium-high heat, stirring constantly throughout.
4. Add the sugar. Add all the sugar at once. Return to a full rolling boil — one that continues even as you stir — and boil hard for exactly one minute. Keep stirring the entire time and don’t reduce the heat.
5. Finish the jam. Remove the pot from heat. Stir in the vanilla extract and salt if using. Skim any foam from the surface using a large spoon.
6. Fill the jars. Ladle the hot jam into sterilized jars, leaving ¼ inch of headspace at the top. Wipe the rims clean with a damp cloth. Apply lids and rings until fingertip-tight — snug, but not forced.
7. Process and cool. Process sealed jars in the boiling water canner for 10 minutes, adjusting for altitude if needed. Remove and set on a clean towel, spaced apart, and let cool undisturbed for 12 to 24 hours. Check each seal before storing.
Tips for the Best Result
Use the cold plate test. Before you start cooking, place a small plate in the freezer. When you think the jam may be ready, spoon a little onto the cold plate and wait 30 seconds. Push it with your fingertip — if it wrinkles and holds its shape instead of running, it’s set. This is more reliable than timing alone.
