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You are here: Home / Recipes / Jams, Jellies, and Condiments / Strawberry Raspberry Freezer Jam

Strawberry Raspberry Freezer Jam

June 30, 2012 Updated July 22, 2017 15 Comments

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I have the best reason ever for not posting for the past few weeks.  Little Lettie Jane (named after my Great Grandmother) joined our family.  She’s a tiny thing weighing just 5 lbs. 7 oz.  
I was the lucky grandma that got to tend the older three children for a week while mom recovered.
It took me a week to recover myself!  
After neglecting my garden for a week, I went out to see how high the weeds were.  To my surprise my raspberries where ripe and ready for picking.  They were just perfect for a batch of freezer jam.  

If you have never tried making homemade jam, this is the recipe you should try.
Homemade freezer jam is so quick and simple.  It will last in your freezer for one year.  It has a bright fresh flavor that is fabulous slathered over buttered toast.  I pack my freezer full every year.  
Let me give you some tips on making the most flavorful jam.
1. Choose bright red berries that are full of flavor.  I like to mix raspberries and strawberries.  Make sure the strawberries are completely red.  No white spots or semi-red berries.  Make sure the have great flavor.    Costco may have the best prices but may be lacking in flavor.  This is why I wait for the raspberries from my garden or wait until local berries are available at the farmers market.  Remember “garbage in garbage out”.
2.  Use only freshly squeezed lemon juice.  You probably know how I feel about that bottled stuff.  I still haven’t found a culinary use for it yet.  The bottles reconstituted juice has a strong flavor that will take over the flavor of your jam.  You want the lemon juice to brighten the flavors of the berries not over power them.
3.  Read the instructions that come with the packaged pectin you are using to the “T”.  Add every single grain of sugar the recipe calls for.  If you want to reduce the amount of sugar in the jam, look for pectin that is specific for “reduced sugar”.
4.  Brace yourself right now.  There is a boat load of sugar in this recipe.  That’s just the way it is.  Accept it.
Let’s get started.
You will need:
1 1/2 cups crushed strawberries (2 pints)
1 3/4 cups crushed raspberries (2 pints)
1/4 cup fresh lemon juice
4 1/2 cups sugar
1 cup light corn syrup
1 package Pectin (this recipe is from a package of MCP pectin)
Clean washed jars with lids.  You can use plastic containers if you wish.
I have a few Weck jars that I purchased from Crate and Barrel.  I like to have a few cute jars on had for gifts.  A jar of jam and homemade bread are a great gift combo…I think.

Start by washing your berries.
Remove the tops of the strawberries and slice.
I like to give them a few quick pulses in the food processor.  You can crush them using a potato masher if you would prefer.

Make sure they measure 1 1/2 cups exactly.
Pour into a large mixing bowl.
Crush the raspberries.  I’m using the food processor again.

Measure exactly 1 3/4 cup.

Add the the crush strawberries and stir together.
***I completely forgot to add the photo of the lemon juice being pour into the berries***
DO THAT NOW!    Add the freshly squeezed lemon juice that you extracted for a real live lemon that you cut in half and juiced.  
Mix well.
Add the pectin.
Sprinkle the pectic over the top of the fruit while stirring.
Stir until the pectin is mixed in very well.  
THIS IS IMPORTANT!  Let the mixture stand for 30 minutes stirring EVERY 5 minutes to dissolve pectin thoroughly.
After 30 minutes, pour 1 cup corn syrup into fruit mixture.  This prevents sugar crystallization during freezer storage.

 Stir well.

It’s best to measure the sugar into a bowl.  This way you don’t forget how many cups of sugar you have added…done that.
Stir in sugar gradually.  
Stir constantly until sugar is completely dissolved and no longer grainy.
As you stir the jam will begin to thicken.  Don’t worry that the jam isn’t completely set.  It will continue to set while setting 24 hours.
Ladle into your jars or containers.  Leaving 1/2-inch space at top for expansion during freezing.
Put on the lid.
Your jam is complete.
You will need to let the jam stand at room temperature for 24 hours until set.  

After 24 hours you can refrigerate your jam for up to 3 weeks or freeze for up to one year.  This recipe makes 7 cups of jam.
How easy was that?
Strawberry Raspberry Freezer Jam

1 1/2 cups crushed strawberries (2 pints)
1 3/4 cups crushed raspberries (2 pints)
1/4 cup fresh lemon juice
4 1/2 cups sugar
1 cup light corn syrup
1 package Pectin (this recipe is from a package of MCP pectin)
1.  Wash and rinse containers with tight fitting lids.
2.  Prepare fruit by rinsing and crushing berries.  Measure exactly and place in a large mixing bowl.
3.  Stir in lemon juice.
4.  Gradually stir 1 box of MCP pectin into fruit.  Mix thoroughly.  Set aside 30 minutes, stirring every 5 minutes to dissolve pectin thoroughly.  
5.  Measure exact amount of sugar into a separate bowl.  Do not reduce the amount of sugar.  If you do, your jam will not set.  Set aside.
6.  Pour 1 cut light corn syrup into fruit mixture.  Mix well.  This prevents sugar crystallization during freezer storage.
7.  Stir in sugar gradually.  Stir constantly until sugar is completely dissolved and no longer grainy.
8.  Pour into prepared containers, leaving 1/2-inch space at top for expansion during freezing; cover.
9.  Let stand at room temperature 24 hours until set.  Refrigerate up to 3 weeks or freeze for up to one year.  Thaw in refrigerator.  
Makes 7 cups jam

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I have made up to 7 batches at a time. Just line up several bowls to create an assembly line of jam.  Works great.  Don’t try to double or triple this recipe.  Just do one recipe batch per bowl and you will have success and fabulous fresh jam for the fam!

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Filed Under: Jams, Jellies, and Condiments Tagged With: homemade freezer jam, homemake jam, jam, raspberry jam, strawberry jam, strawberry raspberry jam

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Comments

  1. Jenny Koecke says

    June 2, 2014 at 12:36 pm

    if I want to do just all raspberries, what do you think the measurements would be for total raspberries! my mom and gramma made freezer jam that was the very best and it used all your ingredients, I have found recipes with no lemon juice or no karo syrup, your is it and has both, I just need all raspberry due to a strawberry allergy! thanks so much!!

    Reply
    • Janet Barton says

      June 2, 2014 at 3:23 pm

      Raspberry jam is amazing. Just use 3 1/4 cup crushed raspberries. You will basically just replace the strawberries with raspberries equally. I hope you love it because it's crazy good.

      Reply
  2. Morgan E. Dominique says

    March 6, 2013 at 2:16 pm

    If i just wanted to make strawberry jam can i replace the raspberries with more strawberries?

    Reply
    • Janet@simplysogood says

      March 6, 2013 at 2:57 pm

      Absolutely. Just replace equal amounts.

      Reply
    • Ann Taylor says

      July 18, 2013 at 11:51 pm

      I have made this jam many times over the years, and have discovered that if you heat the Karo almost to boiling before you slowly pour it in, it warms the mixture just enough to make the sugar dissolve faster. I have also been known to give the bowl a couple 20-second zaps in the microwave (separated by some energetic stirring!) to help dissolve the sugar. It hasn't hurt the quality of the jam one bit. Ann Taylor

      Reply
    • Janet Barton says

      July 21, 2013 at 3:42 am

      Fabulous advice. Thank you so much.

      Reply
  3. Leigh and Anthony says

    July 25, 2012 at 4:36 pm

    Can you do this with other fruit? Peaches or apricot?

    Thanks.

    Reply
  4. Little Magnolia Kitchen says

    July 5, 2012 at 8:43 pm

    I just bought a book from Williams-Sonoma yesterday called "The Art Of Preserving" because I have been wanting to try to make my own jellies, preserves, etc. The part that scares me is making sure there is no contamination. This recipe makes it sounds easy! So I think I will give this recipe a try! Thanks for posting with perfect timing!!

    Reply
    • Janet@simplysogood says

      July 6, 2012 at 4:24 pm

      When you are canning and preserving food to be put on a shelf you definitely need to be extremely careful of contamination. This is pretty much fresh fruit mixed with sugar and frozen. Pretty simple. You will be amazed at how fresh tasting the jam is compared to cooked and bottle jam. Good luck. Let me know how it works out.

      Reply
  5. Hermann says

    July 2, 2012 at 12:14 pm

    Congratulations! A sweet child!

    Greetings from Germany

    Hermann

    Reply
    • Janet@simplysogood says

      July 2, 2012 at 3:49 pm

      Thanks, Hermann. It's always great to hear from my friend in Germany.

      Reply
  6. Caroline says

    June 30, 2012 at 11:17 pm

    Your jam looks fabulous. I've always made cooked jam/jelly but with this heat wave in the southeast I can't bear the thought. I'll let you know if I try this out.

    Reply
    • Janet@simplysogood says

      July 1, 2012 at 3:52 am

      I hope you love this as much as we do. Please let me know if you try it. Thanks for commenting.

      Reply
  7. Anonymous says

    June 30, 2012 at 10:51 pm

    Was wondering where you've been. I have missed you! But couldn't have had a better reason. Congratulations! She's adorable!
    But we want more summer goodies & berry recipes!

    Hailey

    Reply
    • Janet@simplysogood says

      July 1, 2012 at 3:51 am

      I was worried that I was using too many berry recipes. I just love using what is in season. Thanks for missing me. My life should be getting back to normal…oh wait I have a daughter getting married in August. I do my best!

      Reply

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