This homemade peach jam uses exactly three ingredients and a reliable cold-plate test to produce two small refrigerator jars with bright peach flavor.
Three-Ingredient Homemade Peach Jam
This is a refrigerator jam, not a shelf-stable canning recipe. Keep every jar refrigerated after cooling, even before it is opened.
- Prep time: 12 minutes
- Cook time: 20 to 25 minutes
- Cooling time: 30 minutes
- Yield: About 2 cups, or two 8-ounce jars
- Equipment: Wide saucepan, potato masher, chilled plate, and two clean jars

Ingredients
- 4 cups peeled, pitted, and diced ripe peaches, about 24 ounces
- 1 1/2 cups granulated sugar, 10 1/2 ounces
- 2 tablespoons fresh lemon juice
How to Make Peach Jam
1. Prepare the peaches
- Place a small ceramic plate in the freezer before cooking.
- Peel, pit, and cut the peaches into uniform 1/2-inch pieces.
- Measure exactly 4 cups of prepared fruit.

2. Macerate for 10 minutes
- Add peaches, sugar, and lemon juice to a wide saucepan.
- Stir for 30 seconds.
- Rest for 10 minutes so the peaches begin releasing juice.
3. Cook the jam
- Bring the mixture to a steady boil over medium-high heat, stirring frequently.
- Reduce to medium and cook for 15 minutes.
- Mash the softened peaches to the texture you prefer.
- Continue cooking for 5 to 10 minutes, stirring constantly near the end.

4. Check the set with a cold plate
- Remove the saucepan from the heat.
- Place 1 teaspoon of jam on the chilled plate.
- Wait 60 seconds, then push the jam gently with a fingertip.
- The jam is ready when the surface wrinkles slightly and the path does not immediately flood.
- If it remains runny, cook for 2 more minutes and repeat the test.

5. Cool and refrigerate
- Cool the jam in the saucepan for 20 minutes.
- Spoon it into two clean 8-ounce refrigerator jars.
- Leave about 1/2 inch of space at the top.
- Let the jars cool uncovered until no longer hot, for no more than 1 additional hour.
- Cover and refrigerate immediately.

Texture Troubleshooting
- Too thin after chilling: Return the jam to a saucepan, boil for 2 to 4 minutes, and repeat the cold-plate test.
- Too thick: Warm the jam gently with 1 tablespoon of water at a time.
- Large fruit pieces: Mash more thoroughly during the final 5 minutes.
- Scorched flavor: Discard the batch; scraping burnt residue into the jam will not fix it.
Storage and Freezing
- Refrigerate in clean sealed jars for up to 10 days.
- Use a clean spoon each time.
- Freeze in freezer-safe containers for up to 3 months.
- Leave 1/2 inch of headspace before freezing.
- Thaw overnight in the refrigerator and stir before serving.
- Discard jam that develops mold, fermentation, an off odor, or a swollen lid.
For other peach and small-batch options, see spiced peach jam, sugar-free peach jam, and sugar-free apricot jam.
Homemade Peach Jam FAQ
Can I store these jars in the pantry?
No. This recipe was developed only for refrigerator or freezer storage and has not been tested for water-bath canning.
Do I need pectin?
No. Cooking and the cold-plate test determine the set; no packaged pectin is used.
Can I reduce the sugar?
Reducing sugar changes the yield, set, cooking time, and storage behavior. Use the measured amount for this version or choose a recipe specifically developed for reduced sugar.