Leave them to air dry on a towel on a flat surface.

How to freeze blackberries for jam. Follow the instructions on the package for bringing the pectin, sugar and water mixture to a boil on a medium to medium/high heat. Summer is the perfect time to freeze fresh berries for smoothies and jam for the year. Simply combine fresh (or frozen) blackberries, lemon juice, a tiny bit of sugar, and thickener….

(jelly uses the juice only). Add exactly 3 cups of sugar, 1 cup of water, and one packet of pectin to a large saucepan. Reduce the heat to medium boil and let cook for roughly 45 minutes, until the mixture is reduced by half.

Turn off the heat but leave the pan on the stove. Dip your berries in a diluted vinegar bath (1 cup vinegar, 3 cups water) in a large mixing dish. Cut up your blackberries into pieces and add in sugar, lemon juice, and lemon zest.

Add the gelatin and mix for. Let the mashed blackberries and sugar sit for at least 20 minutes to allow the sugar to dissolve before adding in the pectin and lemon juice. Mold and germs will be killed by the vinegar.

Place the tray into the freezer for a few hours until the blackberries are frozen on the outside. Bring it to a simmer over low heat, stirring frequently. Boil and stir for 1 minute.

Raspberries, strawberries, blueberries, blackberries are local favorites here in the. Placing a second towel on top and gently massaging them to dry helps speed things up. This blackberry freezer jam recipe is so ridiculously easy, and only has 4 ingredients!