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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
Hi Natasha,
Can I add lemon juice to this?
Thank you,
Li
Hi Li, you can try to add lemon juice, but you will need more sugar to balance the flavors.
I’m not sure if Li was asking this but I’m wondering about the lemon and how it could affect the preservation?? It’s acidic and that can change things right-? I’m not concerned with adjusting the sugar because I love tart but want it to preserve right… plums are on with organic sugar right this moment- the sugar is white but not white if you know what I mean because it’s not chemically etc hmm hope you see this soon. And ty!!♡♡♡
Hi Natasha. I’d like to try this recipe but I was wondering if after I complete the process of simmering 4 times can I freeze the jam instead of canning?
Hi Teresa, I think it could work as a freezer jam. Be sure to leave 1/2″ space at the top for expansion in the freezer. If you test it out, let me know how you like it as a freezer jam.
In the process of making this now…smells divine! I’ve completed my first 3 boils and when my husband tasted it he felt it’s too tart. Am I able to add more sugar before the last boil cycle or should I just leave it alone?
Hi Christina, some plums can be more tart depending on the variety and how ripe they are. You can definitely add more sugar, be sure to bring it to a uniform simmer after adding sugar.
I’ve made this recipe a couple of times now, whenever I have a bumper crop of plums, and love it. I still have a couple of unopened jars from last year. This year I started the process too late in the day on a Sunday to get it done this weekend. I just finished my first boil/simmer and was thinking of maybe putting the whole pot in the freezer (after it reaches room temp) until next weekend to finish the process (2nd-4th boilings, plus canning) as there is no way I’ll have time to can during the week. Any thoughts as to if this may or may not work? Thanks.
Hi Zach, I honestly haven’t tried that so I don’t know if it would defrost ok. I suspect it would turn very dark though. It may be better to leave it as a freezer jam if you plan to freeze it at all.
Thanks, Natasha. I guess I’ll find out on Saturday – I put the whole pot of once-boiled plums in the freezer after they came to room temp. I did put a layer of plastic wrap directly over the liquid, and then but the lid on the pot, so hopefully they’ll be pretty well preserved. I’ll look into freezer jam – never actually heard of that until now!
Can you freeze the plums and use them for the recipe?
Hi Carolyn, I haven’t tried that, but it should work just fine with frozen plums.
If I want to can in half pint jars, how do I do that? What’s the processing time ?
Hi Kristina, that should work and I would process for the same amount of time.
Natasha, when I make your plum jam – u mention no peeling, where does the skin go – does it absorb? Thank you.
Hi Sheila, great question. If you cook the jam as many times as the recipe states, the peels should incorporate into the jam and add a nice texture without being bothersome.
Hi, can less sugar be used? Or better yet an alternative sweetener?
Hi Aimee, I have not tested this. One of my other readers said this, “I added a bit less sugar, and it’s very bright/tangy with a natural sweetness.” I hope that helps. If you experiment, please let us know how it turns out.
1st time attempting to make jam from our plum tree. I hate waste of any kind and was tired of the birds, squirrels and our emu getting all the good fruit. LOVE this recipe! Had 20 lbs of plums and the hardest part was pitting them. I ended up cutting the “cheeks” off down to the pit. Lost a little fruit but saved on frustration. Ran out of jars with about a cup of fruit left, so I added a little Cool Whip and made a delicious dessert. I’ll definitely try this again. Thanks
Yum! That’s a great idea, Debby!
How do you get rid of the peal or does it boil away?
Hi David! You’re exactly right! This is a no peel recipe. We have a few notes throughout the recipe and in the title for you. I hope that helps.
I made this plum jam recipe with small plums from my neighbor’s tree. The first time making plum jam, btw. The jam is excellent! I will add, that the pits were impossible to remove after halving the fruit before sugaring. I put them in a paper bag with an apple to “ripen” for a few days. Well, they ripened, but the pits were still too hard to pull away. I read several other blogs about boiling the fruit with pits and then straining them out. That worked perfectly after the 1st boil. I used a slotted spoon then switched to a “half” whisk to strain the pits. So, so much easier! NO stress pulling out pits! I’d recommend this recipe to everyone!
Thank you so much for that suggestion, Laura! I bet our readers will find this helpful!
Love the ease of the recipe but why do you have to heat and cool the plums 4 times?
Can’t wait to try on a fresh piece of toast.
Hi Robin, since there is no pectin, it needs time to thicken. This method boils down the plums several times and concentrates the sugars as it thickens.
Can you just simmer it for a very long time until it thickens like in a crockpot and not do the boiling/simmering 4 times? What’s the rationale of boiling and cooling down opposed to just simmering it for a long time until it thickens? Is there any advantage or difference between the 2 methods?
Hi Enye, boiling for a long period of time will make the jam very very dark and there’s also a higher chance of scorching as it thickens up.
I use a food mill when I put up tomatoes and make wild grape jelly. I would like to use your recipe without first pitting the plumbs. Suggestions please. Thank you!!!
Hi Deden, I have only made this by pitting the plumbs first. I think it would be a struggle to remove them after the fact.
Thank you for your quick response! I have tried to separate the plumb from the pit and loose most of the fruit in the process. I plan on running the the entire recipe through a food mill after cooking down several times. Due to the fact the skins of the plumb are the pectin. Hopefully, the pit will not make the jam bitter. Elizabeth
The pits contain arsenic. I learned that when I was checking on if it was safe for my dog to eat the plums off the ground.
Hi Deden, I have an old attachment for a kitchen aide mixer that is a food mill. I use this for anything that needs the pulp separated from the seeds and skin. This is very similar to the Foley Food Mill, only electric as it’s on the mixer.
Really messed this simple plum jam. The grandkids tell me it tastes nice. But, it looked so beautiful in the
jar, but then you needed a strong hand to put it on your knife, from out of the jar. And, it just wouldnt roll on your toast.
Did you possibly cook it too long where it got dried out? It’s normally pretty loose, or at least pretty spreadable.
I know them as Victoria plums but that may be a local name from Australia. Nice easy recipe but the slow cooker version sounds great too. 😷🐾
Thank you so much for sharing that with me, Maria!
Do you peel the plums
Hi Mary, this is a no peel recipe. We have a few notes throughout the recipe and in the title for you. I hope that helps.
Your “no peel” could mean two different things. 1) No peel–no, you don’t want to have peels in the jam so you DO have to peel it, or 2) No peel–no, you don’t have to peel all those little plums because the peels will add color, flavor and nutrition to your recipe and disappear in the process of cooking.
Your wording is confusing and that is why you are getting questions.
Yes, I thought it meant it had no peel and no pectin in it. Glad I read the recipe as I just picked a ton of plums and was going to avoid this recipe. Am now anxious to try it!
THIS IS EXACTLY WHAT I THOUGHT, DID, AND PLAN TO DO! But, it took getting deep into the comments to know for sure. So, there are bound to be other reader, confused by the title as well, and thinking this required one to remove the peels, likely skipped it altogether. Enough so, that the article would benefit from a title with a bit more clarity, yes?
Just wondering- I was able to get 2 boils in today. Do I refrigerate until tomorrow or leave at room temp?
Hi Julie, you can leave it at room temperature. I would keep it covered after it reaches room temperature to keep bugs or dust out, but I have taken 3 days to make jam before and it has plenty of sugar to keep it from spoiling.
This is the most amazing recipe! So easy and delicious. I got 10 pound of plums from a local orchard, added 3 cups of sugar, and did the rest according to the recipe. Couldn’t be easier – I can’t wait to eat it.
What fruits can this process be done with? Only fruits that have natural pectin? What about apples?
Hi Janet, I haven’t experimented with this method using apples. For canning apples, we use our go-to apple sauce recipe.
Hi, what a beautiful recipe! Thank yo for sharing. Might I ask what that tool is/brand that you are using to remove the stones? Thanks.
Thank you so much! You can see the kitchen tools that I use here in my Amazon affiliate shop
Hi Natasha,
I don’t like finding pieces of peel in my jam. Does the peel dissolve somehow or are we eating pieces of peel?
Hi Margie, great question, if you cook the jam as many times as the recipe states, the peels should incorporate into the jam and add a nice texture without being bothersome.
Music drowns out your voice. It is so loud all during your video. I want the banana bread video so I can bake.
Hi Mary! Thank you so much for that feedback! We also have the written recipe with each video.