Blackberry Freezer Jam
This blackberry freezer jam recipe only takes 30 minutes to make & is packed with flavor. It's so easy to make and delicious you'll never go back to store-bought jam!
Servings: 5 cups
Calories: 70kcal
Ingredients
Blackberry Freezer Jam
- 2 cups mashed blackberries - about 3 pints 460g
- 4 cups granulated sugar 800g
- 1 pouch Certo liquid Fruit Pectin 3 Fl oz.
- 2 Tbsp bottled lemon juice 30g
Instructions
Blackberry Freezer Jam
- Begin by washing and drying the containers or jars. Set aside.
- Rinse your berries and either dry them gently with a towel or place them in a colander to help drain any excess water.
- Mash the blackberries with a potato masher until the mixture looks soupy. This will leave some small bits of the blackberries intact and give the jam a bit of texture.
- Use a measuring cup to add exactly 2 cups of mashed blackberries into a separate large bowl.
- Add in 4 cups of granulated sugar and stir until the sugar is fully incorporated.
- Set a timer for 20 minutes and let the mixture sit, stirring every few minutes to help the sugar dissolve.
- Pour 3 Fl oz. or 1 pouch of liquid pectin into the blackberry mixture, being sure to squeeze out every last drop of pectin! Fold the packet down as you go to get all of it out.
- Add in 2 Tbsp of bottled lemon juice, then set your timer for 3 minutes and stir the mixture somewhat aggressively. I like to switch arms halfway through so that they don't feel like they're going to fall off.
- Pour the mixture into your cleaned and dried jars, leaving at least 1/2 inch at the top of the container. The jam will expand as it freezes, so it's important to leave a little room!
- Wipe away any spills, then close the jars with their lids and let them sit for 24 hours at room temperature. Be sure to place them in a safe area where they won't be touched or bumped.
- Once the jam has set, place a bit of tape onto each jar and write the date it was made.
- Then either freeze or refrigerate the jam! It can be frozen for up to a year or kept in the fridge for up to a month.
- To thaw frozen jam, move the container from the freezer to the fridge, then enjoy the following morning once it's thawed.
Video
Notes
Yield
This recipe makes about 5 cups or 40 oz. of freezer jam.Tips for Making The Best Blackberry Freezer Jam
- Use wide-mouthed glass jars for your jam. They're easier to fill and freeze well. You can also use plastic containers with a rubber seal, but I find glass works best.
- Mix the jam in a bowl with a spout to make it easier to pour into the jars.
- Thoroughly clean and dry your glasses before you fill them with jam.
- The quality of your jam is heavily based on the quality of your berries! It's best to use freshly picked berries if possible.
- Make sure your pectin isn't expired! Check the expiration date on the box to be safe.
- Use liquid pectin in this recipe, not powdered! This recipe will not turn out with powdered pectin.
- Let the mashed blackberries and sugar sit for at least 20 minutes to allow the sugar to dissolve before adding in the pectin.
- Use bottled lemon juice instead of fresh lemon juice to ensure the pectin sets properly.
- Make the jam in a bowl with a spout or use a funnel or ladle to easily filly the jars. I didn't and you can see the mess I made!!
- Don't fill your containers to the top! Leave at least 1/2 an inch, because the jam will expand as it freezes.
- Set the filled containers somewhere safe and allow them sit for 24 hours without being touched. This allows the pectin to work its magic and helps the jam set properly.
- Label your jars with the date the jam was made. Use a bit of masking tape and a sharpie!
- You can use fresh bramble berries, raspberries, boysenberries, or marionberries in place of the blackberries in this recipe.
Freezing This Freezer Jam
Like the name implies, this jam freezes incredibly well! It can be frozen for up to a year. While it stays good for a long time, I doubt it'll last that long :P When you're ready to eat the frozen jam, remove the container from the freezer and place it in your fridge overnight. It should be ready to enjoy by the following morning.Nutrition
Serving: 1 | Calories: 70kcal | Carbohydrates: 18g | Sodium: 2mg | Sugar: 17g