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We’re on a canning spree this week. The air is crisp and the mornings are cool. We’re surrounded by a fiery array of leaves that rustle in the warm afternoon breeze. Fall is in the air and canning just feels right this time of year.
I could eat this plum jam by the spoonful; paired with a hot mug of tea (I’m totally day dreaming here)… Our tiny plum tree overproduces the most amazing little plums every year. I wish I could name this variety; anyone recognize these little beauties?
This recipe is really a cross between plum jam and plum preserves. It still has some of it’s preserve-like plum chunks, but it’s nice and thick and spreads beautifully. It’s awesome paired with breakfast pancakes or crepes. Oh and this would make the sweetest Christmas gift!
Home Canning Tools:
- 8 pint-sized jars with lids. I purchased them at Walmart.
- Large Stock Pot (20Qt+) with Rack (or purchase a canner)
- Jar lifter to safely transfer the jars
How to Make Plum Jam:
Cooking the Preserves:
1. Cut 12 lbs of plums in half, pit them and place in a large mixing bowl. Drizzle well with 4 1/2 cups sugar. Using a large spoon, stir plums with sugar until all are coated. If your plums are overripe or already very sweet, you may only need 4 cups of sugar total. You can add more sugar to taste while its cooking. Let plums sit at room temp with the sugar for about 1 hour, or until sugar is somewhat dissolved.
2. Transfer plums/sugar mixture in to a large cooking pot. Place it on the stove uncovered and bring to a boil, stirring occasionally. Make sure if you see a light boil to stir because the whole pot may not be boiling, just the center. If it stops boiling after you stir it, continue boiling until everything is uniformly bubbling, then simmer for 10 minutes and turn off the heat. Let the pot stand uncovered until it is just warm to the touch or reaches room temp.
3. As soon as it cools, repeat step 2 the same way – simmering 10 minutes. You will bring it to a simmer a total of 4 times, stirring to prevent scorching the bottom. This is why it takes 2 days to make. It’s really easy though and so worthwhile! There’s no “set” waiting time between boilings. If 2 days doesn’t work for you, by all means, take 3 days. Preserves have plenty of sugar so they won’t spoil at room temp if you leave it on the counter overnight. If you want the preserves to have an even thicker consistency, you can boil it 5-6 times if you wish.
(Note: the fourth time you boil, bring it to a boil over a little lower heat and stir a few extra times to prevent scorching. Also, it thickens more as it cools. If using a different type of plum, I suggest adding sugar to taste in case they are more tart)
4. The last time you bring it to a boil you will want to transfer it to sterilized jars while it’s boiling hot.
To sterilize the jars:
1. Start by washing your jars and lids with warm water and soap then let them dry in the oven at 215 for about 20 min or until completely dry. Boil the lids 5 min.
2. Transfer your boiling hot jam to the jars using a glass measuring cup and a funnel (least messy method) leaving about 1/2″ space.
3. Screw the lids on enough to keep a tight seal in place but don’t over-tighten them since air bubbles need to be able to escape.
Current Canning Guidelines:
Get up to date on the most recent canning guidelines here. It’s a great resource to answer frequently asked canning questions. Current guidelines recommend the following process (instead of oven canning):
- Place packed cans into the canning pot and cover with 1-2 inches of water. Bring to a boil and process 15 minutes.
- Remove from the pot and leave at room temperature undisturbed for 12-24 hours. You may hear a pop when the jars fully seal.
- After 24 hours, check that the seal has formed by pushing down on the center of the lid – it should not move at all. If the seal does not form, refrigerate jam and enjoy within 3 months.
Now don’t you want to curl up with a jar of that?
Plum Jam Recipe (No Peel, No Pectin!)

Ingredients
- 12 lbs sweet ripe plums, rinsed
- 4 1/2 cups granulated sugar
- 8 pint-sized jars with lids.
Instructions
- Place pitted and halved plums into the mixing bowl & drizzle with 4 1/2 cups of sugar. Stir plums until all coated with sugar. Let them sit for 1 hour then transfer the mixture into a large cooking pot.
- Bring it to a boil uncovered, stirring occasionally. Boil until the mixture is bubbling uniformly. Simmer for 10 minutes then turn off the heat. Cool to room temperature.
- Repeat step 2 a total of FOUR times. Last time bringing it to a boil at the lower temperature, stirring frequently to prevent scorching.
To Sterilize Your Jars:
- Start by washing your jars and lids with warm water and soap then let them dry in the oven at 215 for about 20 min or until completely dry. Boil the lids 5 min.
Filling and processing your jam:
- Transfer your boiling hot jam to the jars using a glass measuring cup and a funnel (least messy method) leaving about 1/2″ space.
- Screw the lids on enough to keep a tight seal in place but don't over-tighten them since air bubbles need to be able to escape.
- Place packed cans into the canning pot and cover with 1-2 inches of water. Bring to a boil and process 15 minutes. Remove from the pot and leave at room temperature undisturbed for 12-24 hours. You may hear a pop when the jars fully seal. After 24 hours, check that the seal has formed by pushing down on the center of the lid - it should not move at all. If the seal does not form, refrigerate jam and enjoy within 3 months.
Nutrition Per Serving
Recipe updated in 2019 to reflect new canning standards. Previously we used the oven method: screw the lids on enough to keep a tight seal in place but don’t over-tighten them since air bubbles need to be able to escape and place in the oven at 350˚F for 15 min then carefully remove from oven, flip upside down and let cool to room temperature.
Signs of Spoiled Canned Food:
With any type of canning, we follow this advice: “When in doubt, throw it out”
Discard and do not eat or taste any canned food if you notice any of the following:
- the jar is leaking, bulging, or swollen
- the jar looks damaged, cracked, or abnormal
- the jar spurts foam or liquid upon opening
- the canned food is discolored, moldy, mushy, slimy, or smells bad
We have a plum tree full to brimming right now and we’re going to make some jam! I have a question though. The recipe is called no peel no pectin but it doesn’t state what to do with the peels. I read the whole recipe and notes and I’m not sure about the peels. Do you peel the plums at some point or do they just become incorporated during the cooking? Thanks!
Hi Bonnie, the peels add great texture and there is no need to remove the skins.
Mine came out GREAT! I had 35-40 very ripe plumbs (golf ball size) left on my tree that were going to fall and rot, so I decided instead to try this recipe. I probably had only 3 lbs, so cut the sugar to around 1 cup. After de-pitting, I blended the pulp briefly to break up the skins. I produced a single 12 oz jar of jam. I think I messed up the final canning stage bc a tiny bit of jam leaked out of the lid while the jar rested upside down after oven sealing method, but we are eating it over the next 2-3 weeks so no big deal. It may be the best jam I’ve ever had.
Thank you so much for sharing that with me Todd! I’m so glad you enjoyed this recipe.
I have never canned anything. If I make a smaller batch and use it right after making it, do I need to do the canning process? Or can I simply make a jar of this jam and then use it?
Hi Selina, we have made several in the past we enjoyed fresh by keeping it in the fridge.
Hello,
I saw 3 lb bag of red plums and I immediately thought I’m gonna try to make Mama’s plum jelly. She would make 20 or 30 jars and paraffin seal them, no pectin and it tasted amazing. 40 years later Mama’s gone but I do cook like her so why not try to replicate her magic. I brought the bag of plums home and got to work. I googled and lucky me! I found this recipe. Somehow it eluded me at first that this is a JAM, not a JELLY recipe but I’m glad I didn’t catch that right away as I may have skipped over this recipe. Glad I didn’t. I was able to make something more versatile. I was able to modify this and get about a 14oz jar of jam. It not only has that same plumminess and homemade love taste like Mama’s but because it’s a jam it has texture and stands up well as a mix-in to my breakfast bowl of steel-cut oats, or in plain yogurt. Today, I tossed some toasted oats in brown sugar in butter, cooked for a few minutes in the oven, put some of the plum jam in the bottom of a small ramekin, added a dab of butter, microwaved for few seconds on top added the toasted instant quick dessert fix in a small tasty portion-controlled way. What next? Pum tarte tatin? The sky’s the limit! I am definitely a fan of this site and have subscribed!
Thank you so much for sharing and for subscribing!
Hello, thanks for the personal response. Just made a pluot same from this very same recipe. So the gift keeps on giving!
hi my name is dave and want to substitute sugar for monk fruit . is there a ratio to follow in plum jam prep.?
Hi Dave, I haven’t tested that and don’t have any experience with monk fruit in canning. You might have to google if that is a safe substitution to preserve jam.
Monk Fruit and Swerve have a tendancy to cristallize and separate from fruit after being refrigerated in Jam. I have had better luck with Xilytol from birch tree as a substitute for sugar in Jam. However; most of my baking works great with Monk fruit and Xilytol.
I welcome this little amount of sugar and since I have not done Jam with so little sugar in 40 years I would have to check how it works with substitute sugar. Usually, I have used 500g of substitute sugar or regular sugar for 1 kg of plum. Some experiments need to take place as I have 12 pounds of french plum that were just given to me.
Thank you for sharing that with us Jean-Louis!
re: Xylitol… Please PLEASE remember your pup cannot have the littlest tiny lick of it! Highly toxic to dogs!! I use it in my home a bit too and it is also wonderful to add to your dental/sinus rinse routines to kill bacteria and prevent decay as well
I have a tree that is loaded with plums, I don’t know the variety. small, almost black with sweet meat but bitter skins. I want to can but would like it to last longer than 3 months. Is there a way for long term storage and use?
Hi Jeff, if properly canned, jam can last at least a year on the shelf.
I have entered food preservation contests at the State Fair for years. The Master Food Preservers judge and your entries can be up to 3 years old and considered safe for consumption and delicious.
Thank you so much for sharing that with me.
I cooked mine 4 times over two days….. didn’t jam up. my dad says I have ice cream toppings not jam.
Hi Leighann, did it thicken as it cooled? I’d be happy to troubleshoot, was anything altered in the recipe?
Hi Natasha I bought a big box of holiday variety plums and I want to try your recipe, I have a couple of questions. my plums seem a little firm will that matter? Should I let them ripen some more? Also the plum skins feel waxy, should I use some sort of fruit wash on them?
I cant wait to try this recipe thank you, Sharon, St Leon Indiana!
Hi Sharon, it is best if they are ripe, if they are too firm the plum might not break down into a jam as well. Yes, I do recommend cleaning off the waxy coating.
Made the jelly and it turned out perfect! We love it!
I’m so glad you enjoyed that!
I am making jam with red plums that have the yellow inside and the jam mixture is cooking up brown. Is that normal?
Hi Rose, it could be the type of plums used but also, the longer fruit is boiled, the more it darkens in color which is why we bring it to a boil several times rather than just one very long boiling time.
Hi. I am on my 4th boil and decided to taste. It is not near sweet enough. Can I add more sugar now. It tastes like cranberries so very tart.
Hi Cyndi, some plums can be more tart depending on the variety and how ripe they are. You can definitely add more sugar, just be sure to bring it to a uniform simmer after adding sugar.
Hi, I’m in the process of making this. Curious about the process and wish I could learn more about this approach…
Guessing, is the 1 hour of sugar/plum soaking a process of breaking down fruit?
Is the heating/cooling process a way of thickening?
Thank you!
Hi you are correct on both things. I hope you love the jam!
The taste and texture are fabulous! Tomorrow morning is my last boiling, then canning. Thrilled with this recipe. It is such an unusual approach, so curious about it and if its done with other fruits as well (the heating/cooling/heating approach). Is there a name for this technique? Thank you!
Yay! You’re almost there! Not that I’m aware of, Amy.
Hi there. Approximately how many cups of prepared fruit equals 12# plumbs?
Don’t have a scale, picked from my tree. Thanks much!
Hi Cat, I didn’t measure the plums that way, but just to give you a rough idea: 1 lb for me was about 6-8, two-inch-wide plums. I want to say it was about 30 cups… maybe?
My question is, the title says
No peel No pectin! I understand the no pectin, but every picture in the recipe shows clearly that the peel is still on the plum. So what does No Peel represents in this recipe? Just wondering
Hi Jacqueline, this is a no peel recipe and no need to remove the skins.
I had the same thought as Jacqueline. Maybe it should say “no peeling” to avoid confusion, because to me it also seemed to imply that the plum peel would not be in the jam.
I’m giving it a try. I love jam recipes that don’t require pectin, as I find it hard to work with without it getting lumpy.
A great recipe. Perfect amount of tart and sweet balance. I only had to boil three times to get a nice consistency.
I’m so glad you enjoyed it Terry! Thank you for sharing that great review!
Do the skins break down or are there wads of skin in the jam?
Hi Lisa, it really depends on the variety of plums. There are some plums with thicker skins but I think the skins add nice texture to the jam. It would be ok to mash it if you wanted it to be more of a puree consistency but we prefer it slightly chunk. I like seeing the pieces of fruit in my jam I hope you LOVE it!
I am worried that this is not enough sugar to can safely. But only because other recipes seem to have so much more. Are my concerns unfounded? Also, could i use this recipe, but not do the three cooks/? What if i just heated it to rolling boil and stirred for 20 minutes, then canned?
Hi Elena, this method is different in that it boils down the plums several times and concentrates the sugars as it thickens. If you wanted to do the boiling for 20 minutes and then canning, you would need to add pectin and more sugar.
I cooked the plums down three times and the jam set up perfectly with no pectin .
Wait. Didn’t your oven canning method (previously described here) call for starting the jars in the oven upside down, then turning them right side up after removing from the oven? Now it says to turn them upside down after removing them from the oven.
Hi JJ, It was the other way around previously – right side up in the oven and then turn upside down. The current guidelines recommend processing in the water bath and then keeping them right side up until they form the seal and reach room temperature. We updated the recipe to match current guidelines.
I am making this now, so far so good! I didn’t read every comment, but in case no one said this, I believe your plums are damsons, which in my opinion are the very best plums!
Thank you for sharing that with us, Cassie!
When I was little my Grandmother had this type of plum tree in her back yard. She called them Damson plums. She would make jam very similar to your recipe but also kept the pits in. She said that helped to thicken it. Then she scooped the pits out before jarring it.
So this morning my friend called and offered me some damson plums which I jumped at on the condition she took some of my pears. I am now getting ready to make your recipe. I can almost taste it and see the gorgeous rub purple colour of the finished product
That’s just awsome, Marilyn! Thank you so much for sharing that with me! I hope you love this recipe.
Do the plums need to be soft? Just bought 30 lbs and will make Powidlo/Jam. and it was suggested to smash them before putting sugar on them so they can soak it up
Hu Jakub, our plums were ripe but not overly soft. I recommend taking a look at the images on the recipe blog post for a guide as to what our plums looked like.
Thanks will take a look.
Made the plum jam today. 12 lbs pitted plums, Stanley, 4.5 C sugar. Made 10 and 1/2 pints. Cooked the plums twice yesterday then this morning a third time. Then put it in the jars. Mashed the plums with a potato masher
Thank you so much for sharing that with me.
I made this and loved it when I was jarring it up. I just opened a jar and it seems a bit too tart. Can I reprocess with a bit more sugar?
Hi Lorri, I haven’t tried reprocessing so I’m not sure about the food safety aspect of doing that. I would suggest adding more sugar and then keeping it refrigerated once it has been opened. Since all plums are a little different in sweetness and ripeness at the time they are canned, I highly recommend tasting the jam before canning so you can add more sugar at that point.
Hi Natasha,
Can a sugar alternative be used in this recipe/ something like swerve, monkfruit, or zylitol sweetener? I was going to try a half recipe doing 1/2 real and half alternative sweetener. Any suggestions?
Hi Carolyn, I honestly have never tried using a different sweetener so I can’t make any suggestions for that substitution.
I didn’t let it cool all the way to room temperature before I heated it up again. Is that going to affect anything? Texture seems to be good.
Hi Chris, no worries – you won’t harm anything by doing that.
Hello my name is LaDonna I have the answer to your question as to the name of your little plums in my opinion they are the best ones for making jam and the hardest to find in stores they are Italian prune plums the ones they dry for prunes they are my favorite I envy you for your tree enjoy
Thank you so much for sharing that with us, LaDonna!!
Hi,
Our neighbors have about 50 Italian trees. U-pick, Dundee Oregon. Hope you are close so you can enjoy their splendor!