This homemade grape jam has just enough sugar, needs no pectin and makes a beautiful garnish for your toast, charcuterie board or even a PBJ.

My kids know that we always have jam in the house. I don’t have a pantry full of jars because I am constantly making jam with whatever fruit is in season and on hand.
I got my love of jams and jam making from my mother’s side of the family. It’s in my blood. I was so intimidated the first time I made jam and quickly realized that it is ridiculously easy to make ANY kind of jam.
Most of the time, I eye ball the amount of sugar because I do not like my jam super sugary. Don’t have enough peaches to make a full jar of peach jam? Throw in a few strawberries to make up for it.
I like in San Diego and we have been growing grapes in our backyard for the past 5-6 years. We finally figured out what we are doing last year and had our first bumper crop of red grapes.
This year we are going to have even more grapes to harvest, so this homemade grape jam is only the beginning of the many grape recipes coming your way!
Why you have to try this recipe
You usually see grape jelly at the store more so than grape jam. Jelly is made with just the juice of the fruit. Sometimes you have no choice in the matter, like when you make pomegranate jelly.
But grapes have pulp and their skin is equally delicious in a jam. You can make grape jam with any kind of grapes, from green to red to purple. I wish I could tell what kind of grapes I used in this jam, but my husband and I have no idea what kind of grapes are growing in our yard!
But I can tell you by August, the grapes are red and sweet. Even the bunches with a few rogue green grapes are sweet. And making grape jam is crazy easy.
You can use the jam any number of different ways, from topping your buttered toast or poured over a baked brie. Grape jam isn’t just for a PBJ anymore!
Ingredients you need
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- Grapes: You can make jam with any color of grape (green, red, purple). It will be much easier to use seedless grapes. If your grapes have seeds, then you have to go through the trouble of removing seeds.
- Sugar: This recipe uses granulated sugar to sweeten the jam. I also use the minimum amount of sugar, as I do not like an overly sugar jam. You can also use honey or brown sugar to sweeten jam.
- Lemon: The citric acid in lemon juice not only keeps the fruit from oxidizing, but it also adds natural pectin. No additional pectin is needed. For additional flavor, you can add grated lemon zest. You can also use orange juice/zest instead.
Step-by-step directions
1. Remove grapes from stem, wash clean and drain of excess water. Place in a pot.
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2. Add sugar and lemon juice and bring to boil over moderate heat. Stir frequently and skim off the foam. Break down the fruit with a potato masher while it cooks.
3. Continue cooking until jam is thick about 30-45 minutes. To test jam, add a teaspoonful on a chilled plate and place in the refrigerator. Jam is done when it sets after a minute or two. If you want a smoother jam, use an immersion blender and blend everything in the pot.
4. If you are canning the jam, you will need to sanitize the canning jars. This can be done by hand washing with hot water and soap or by running the jars through the dishwasher. I have full directions on how to can using hot water here.
Recipe tips and FAQs
You can make jam all year long because there is a fruit for every season.
- Microwave your sanitized jars right before ladling the hot jam in. This keeps the jars from breaking from extreme swings in temperature.
- If you are canning, fight the urge to overfill the jars! Fill only to ½-inch from the top of the jar or else the jars will burst.
- Sweet fruit will need less sugar. I always err on the side of less sugar when making jam. If your fruit is not very sweet, taste the jam while it simmers and add more if you need it.
And if you still have a ton of grapes you need to use up, make some homemade grape juice!
To test the jam, scoop a spoonful onto a cold plate and place it in the fridge for a few minutes. If the jam looks thick after it sets in the fridge, it’s ready!
Yes! A good rule of thumb is to use half the amount of honey as you would sugar. So for every 1 cup of sugar, use ½ cup of honey. And of course, you can adjust the sweetness as your jam is cooking, so use less at first because you can always add more honey.
Absolutely! Be sure to use the right container for freezing. Glass can shatter, so be careful. There are plastic freezer jars available that you can use. Again, do not overfill as jam will expand while it freezes.
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Homemade Grape Jam – No Pectin
Ingredients
- 2 lb seedless grapes any variety
- 1 ¼ cup granulated sugar
- 1 tablespoon lemon juice
Instructions
- Remove grapes from stem, wash clean and drain of excess water. Place in a large heavy bottom pot.
- Add sugar and lemon juice and bring to boil over moderate heat. Stir frequently and skim off the foam. Break down the fruit with a potato masher while it cooks.
- Continue cooking until jam is thick about 30-45 minutes. To test jam, add a teaspoonful on a chilled plate and place in the refrigerator. Jam is done when it sets after a minute or two. If you want a smoother jam, use a hand blender and blend everything in the pot.
- If you are canning the jam, you will need to sanitize the jars. This can be done by hand washing with hot water and soap or by running the jars through the dishwasher. I have full directions on how to can using hot water.
Notes
Nutrition
Nutrition Disclaimer
Nutritional information is an estimate provided to you as a courtesy. You should calculate the actual nutritional information with the products and brands you are using with your preferred nutritional calculator.
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Written by Laura Bashar
Hi, I’m Laura, a certified professional cook and cookbook author living in San Diego. I have been sharing my family’s favorite recipes inspired from all over the world since 2008. Let’s cook up something fun!
Great recipe. Have loads of grapes this year, although the 2025 season here in New Zealand is very late. Most of the grapes are ripe, but still a few rogue green ones, but will cook them all up. What with some home grown raspberries , strawberries and rhubarb and apple,
, hope to keep the family in jam for the winter.Thanks for the recipe.
How long does it take you to mash the grapes with the potato masher? And do you find that they only get soft enough to mash after about 20 min of boiling? Ive been trying to mash mine for awhile now and maybe there’s too much liquid but I’m barely making progress.