Strawberry Rhubarb Jam (Small-Batch Freezer Jam)
This small-batch freezer jam captures the bright, sweet flavor of fresh strawberries and the tartness of rhubarb in an easy spread.
Strawberry rhubarb jam is a delicious way to preserve the flavors of spring and summer in a flavorful jam, without using commercial pectin.

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There’s nothing quite like enjoying fresh fruit at its seasonal peak. But when you want to extend the life of the produce, making homemade jam is one of my favorite ways to do it.
Both strawberries and rhubarb are plentiful during the spring and early summer, and their flavors are a match made in heaven!
The sweetness of strawberries is enhanced by the tartness of rhubarb, so it makes perfect sense to combine the two in a small-batch strawberry rhubarb jam.
This is a simple jam made without store-bought pectin, so you only need a few ingredients to make it. Then you can tuck a couple of jars away in the freezer for a cold day when you need a taste of warmer weather!
Serve it over biscuits or toast, spread it onto pancakes, or spoon it over your oatmeal or a scoop of vanilla ice cream.
More Easy Recipes:

Making Jam without Pectin
Many jam recipes call for store-bought pectin, which is what gives the jam a gel-like consistency.
But I don’t always have pectin on hand. That’s okay, because lemons are actually naturally high in pectin!
Adding the lemon juice not only helps to brighten the flavor of the strawberries and rhubarb, but it also helps the consistency of the jam.
Choosing Fruit for Strawberry Rhubarb Jam
For the best jam, I suggest using firm, crisp stalks of rhubarb with good color and no soft spots.
Redder rhubarb often gives prettier jam, but green stalks work just as well and can sometimes be more tart. Trim and dice the rhubarb evenly so it cooks at the same rate.
Use ripe, flavorful strawberries, but not overripe or mushy ones.
Very ripe strawberries can have lower natural pectin, which may give you a softer set. If your berries are extremely sweet and soft, you may need an extra minute or two of cooking.
More Delicious Fresh Strawberry Recipes:
- Old-Fashioned Strawberry Shortcake
- Strawberry Biscuits
- Strawberry Cobbler
- Ninja Creami Strawberry Sorbet

How to Make Strawberry and Rhubarb Jam
It’s really easy to make this small-batch freezer jam.
Ingredients You’ll Need
- Fresh rhubarb
- Water
- Fresh strawberries
- Sugar
- Lemon Juice
- Salt

How to Make It:
Find the full printable recipe available below
Cook the ingredients. First, you’ll add the rhubarb and water to a large saucepan.
Cook over medium heat for 5 to 7 minutes, stirring occasionally, until the rhubarb softens and begins breaking down.
Then add the strawberries, sugar, lemon juice, and salt. Stir well and bring to a gentle boil over medium-high heat.

Let the jam thicken. Reduce the heat to medium and cook 8 to 10 minutes, stirring often, until the fruit softens and the mixture begins to thicken.

Check to see if the jam has set. You’ll want to make sure the jam has achieved the right consistency. You can check for to to reach a temp of about 218°F if using an instant-read thermometer.
Or, test the jam by spooning a small amount onto a chilled plate. Run your finger through the jam. If the swipe doesn’t go back together, it’s ready.
Remove from heat and let rest 5 minutes. Spoon warm jam into clean freezer-safe jars, leaving 1/2 inch headspace at the top for expansion.
Cool to room temperature, then refrigerate until chilled. If desired, you can freeze it as well!

Notes and Adaptations:
- This is a softer-set freezer jam, not a firm pectin-style jam.
- Use a wide, heavy-bottomed pan for faster evaporation. Stir more frequently near the end of cooking to prevent scorching.
- For best results, check both temperature and texture together rather than relying on one method alone.
- To perform a spoon test instead of a plate test: while the jam is simmering, put a couple of spoons in the freezer to get nice and cold. As the jam starts to thicken, quickly dip a cold spoon into the jam and pull it back out, watching to see if the jam starts to gel up on the spoon. If so, it’s done! If the jam is still pretty runny and doesn’t gel, it needs to cook a bit more.
- Don’t forget to leave headspace in freezer containers so the jam can expand as it freezes.
- Freeze for up to 1 year. Once thawed, refrigerate and use within 3 to 4 weeks.

Recommended Equipment:
- Dutch oven or stock pot (you want a pot big enough to allow room for the mixture to bubble and foam)
- Instant read thermometer or clip-on candy thermometer
- Freezer-safe jars – I love these quilted half-pint jars.
- Funnel for transferring jam into the jars – I like this collapsible funnel because it stores in a drawer easily.
- Ladle
- Dissolvable labels for jars – These are super handy because they wash right off of the jars when you’re done.

Strawberry Rhubarb Jam
Ingredients
- 3 cups diced rhubarb (roughly 1/2 inch dice)
- 2 tablespoons water
- 3 cups diced strawberries (roughly 3/4 inch dice)
- 2 1/2 cups granulated sugar
- 3 tablespoons fresh lemon juice
- Pinch of salt
Instructions
- Place 2 small plates in the freezer to chill for testing the jam.
- Add the rhubarb and water to a large saucepan. Cook over medium heat for 5 to 7 minutes, stirring occasionally, until the rhubarb softens and begins breaking down.
- Add the strawberries, sugar, lemon juice, and salt to the rhubarb. Stir well and bring to a gentle boil over medium-high heat.
- Reduce the heat to medium and cook for 8 to 10 minutes, stirring often, until the fruit softens and the mixture begins to thicken.
- If using an instant-read thermometer, cook until the temperature reaches about 218-220°F. Test the jam by spooning a small amount onto a chilled plate. Run your finger through the jam. If the jam around the swipe doesn’t go back together, and the blob of jam wrinkles or moves as one clump, it’s ready.
- Remove from heat and let rest 5 minutes.
- Spoon into clean freezer-safe jars, leaving 1/2 inch headspace empty at the top of the jars. Cool completely at room temperature, then refrigerate until chilled. If desired, freeze the jars once they're chilled.
Notes
- Use a wide, heavy-bottomed pan for faster evaporation.
- Stir more frequently near the end of cooking to prevent scorching.
- For best results, check both temperature and texture together rather than relying on one method alone.
- To perform a spoon test instead of a plate test: while the jam is simmering, put a couple of spoons in the freezer to get nice and cold. As the jam starts to thicken, quickly dip a cold spoon into the jam and pull it back out, watching to see if the jam starts to gel up on the spoon. If so, it’s done! If the jam is still pretty runny and doesn’t gel, it needs to cook a bit more.
- Don’t forget to leave headspace in freezer containers so the jam can expand as it freezes.
- Freeze for up to 1 year. Once thawed, refrigerate and use within 3 to 4 weeks.
Nutrition
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