Making homemade raspberry jam and canning jars of it for long term storage is a great way to enjoy the taste of summer raspberries all year round!
It’s THAT time of year once again… I go and pick fresh berries at a local U-Pick Farm, then come home and “morph” the berries into several different recipes. This Raspberry Jam is the result of my latest berry picking adventure!
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I Love To Pick Raspberries At A Local Farm
There’s something to be said for picking your own raspberries in the cool of the morning on a gorgeous day. It’s also fun to use those fresh-picked berries to make raspberry jam! That’s my feeling every single time I pick berries at a local U-Pick place, called Rowell Brothers Berry Farm, which has been in existence since 1853.
This time I picked about 14 pounds of Willamette Red Raspberries. Here’s a few of them…
I use a lot of berries picked to make homemade raspberry jam. Jam making, once you get the “basics” down, is fairly easy and results in lots of jars of jam to store in our pantry.
Prepare Equipment and Jars For Canning
To make this recipe for raspberry jam, first wash and pre-heat the jars and lids (lids are in separate bowl). Follow all manufacturer guidelines for canning equipment.
Prepare The Raspberry Jam
Crush the raspberries (I used my trusty potato masher), measure the exact amount of raspberries into a large cooking pot, then add one box (2 ounces) of powdered fruit pectin, and stir it in.
Bring the raspberry/pectin mixture to a full rolling boil (a “rolling boil” means it won’t stop boiling even while stirring), then add the sugar quickly, and stir it all to combine.
Bring the raspberry/pectin/sugar mixture to a full rolling boil, then continue boiling it for exactly 4 minutes, stirring constantly.
After it has boiled for 4 minutes, remove pan from heat, and skim off the foam that has accumulated on the top of the jam mixture.
Fill the Jars With Jam
Ladle the HOT raspberry jam into prepared canning jars, using a wide mouth canning funnel.
Add jam up to 1/8 inch headspace from the top of the jar, then follow standard canning instructions for removing the air bubbles from jam.
Adjust the headspace (if necessary), then wipe rim of the jar with a wet paper towel to remove any jam debris (so the jar would seal properly).
Use magnetic canning wand (if you have one) to pick up the hot lids out of the water, and place one on each jar.
Screw the jar rings on, fingertip tight, then carefully lower jars into water bath canner, making sure that jars are completely covered by at least one inch of water above the tops of the jars.
Process The Jars Of Raspberry Jam
Cover the canner, and bring water to a boil. Process the raspberry jam for 10 minutes (after it comes to a boil).
When processing time is done, turn off heat, wait for a couple minutes, remove lid, then remove jars of raspberry jam (using canning tongs), and set them on a dish towel to cool.
Let the jars sit, undisturbed on the dish towel for 24 hours, listening for the tell-tale “PING” sounds, which means the jars have sealed. Check the seal by lightly pressing on the middle of the lid with a finger. If the jar did not seal, the lid will spring back. if that happens, you must refrigerate that jar of jam.
After 24 hours, I put all the jars of jam into our pantry, to use up throughout the year and to give as gifts. Just yesterday, I gave a jar to my next door neighbor That’s it… a little bit of time guarantees us absolutely delicious, fresh raspberry jam all year long! YAY! Sure hope you’ll give this recipe a try!
Looking For More JAM Recipes?
You can find all of my jam recipes in the Recipe Index, located at the top of the page. I have several, including:
Interested In More Recipes?
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Recipe Source: Instruction page for jam, found in box of MCP Premium Fruit Pectin.
- 6 cups of crushed raspberries (measure AFTER crushing them)
- 8 1/2 cups granulated sugar
- 2 ounces Classic powdered fruit pectin (1 box)
Fill a boiling water canner half full of water. Bring this to a simmer. (At the same time, I start a teapot with water going, so I will have boiling water for the jar lids later on). Wash jars and lids in soapy hot water. Put lids in small bowl. Fill jars with water and put in canner on a rack, while it is simmering, to keep jars warm. (Or you can set jars on dish towel on a cookie sheet and keep in oven at 250 degrees for 20 minutes for same effect).
- In a large bowl, measure out the exact amount of sugar. Set aside.
Crush the raspberries, one cup at a time, until you have 6 cups of mashed berries. Put the berries into a large stock pot. Stir the box of Pectin into the berries. Bring the raspberry mixture to a full rolling boil on high heat, stirring constantly (a rolling boil is when it is boiling hard, so that it won't stop bubbling even when stirred). Stir in all of the sugar quickly (all at once). Stir well to combine.
- At this point, I pour boiling water over the jar lids that are in the little bowl. Let them just sit in the hot water for 5 minutes while you finish the jam.
Bring the jam/pectin/sugar mixture back to a full, rolling boil. Once it is a full rolling boil, boil it for exactly 4 minutes, stirring constantly. When time is up, remove pan from heat, then skim off any accumulated foam (and discard foam). Ladle the hot jam mixture into hot, prepared jars. Fill the jars, but leave 1/8 inch headspace at the top of each jar. Insert a plastic knife into each jar a couple times to help remove air bubbles. Adjust the headspace if necessary. Use a damp cloth or paper towel to wipe down the rim and edges of the jar. You need it free of debris in order to get a good seal on the jar. Cover the jars with the hot, flat jar lid. Screw on the jar rings tightly.
- Lower each of the jars onto an elevated rack in the canner. The jars must be completely covered with water, and must have at least an inch of water over the top of the jar. Add more boiling water to canner, if necessary, to make sure.
Cover the canner; bring to a gentle boil. Once the water is boiling, process the jars for 10 minutes. When done, wait for a minute, carefully remove canner lid (lift lid away from you because of steam); carefully lift each jar out of water (with canning tongs), and place on dish towel on the counter to cool (do not put jars directly on counter cause you don't want temperature differences to possibly crack jars). You should hear "ping" sound as the jars seal properly.
After the jars cool for 24 hours, you can check to see they sealed properly by pressing the middle of the lid. The jar should NOT spring back when touched. If it does spring back, then you will need to refrigerate that particular jar. Let the sealed jars stand at room temp for 24 hours, then store unopened in a cool, dark place for up to 1 year.
FYI-The ten cups of jam this recipe produced filled the equivalent of 10 half-pint jars.
Here’s one more to pin on your Pinterest boards!