How To Can Blackberry Jam Food

BLACKBERRY JAM

Steps:

• The night before you make your jam, layer the blackberries and sugar together in a very large bowl, then cover and set aside at room temperature. This helps the sugar to start dissolving so you don't run the risk of over-cooking the fruit when you actually begin to make the jam. The next morning, give everything a quick stir, then set aside again until you are ready to start cooking.
• Before you start, put a small saucer in the freezer. Take a preserving pan or a large, wide-based pan (the wider and more open the pan, the faster the jam will be ready, so a preserving pan is really ideal) and tip the berries in, scraping out all the juices and any undissolved sugar. Stir in the lemon juice, then collect all the pips and secure them inside a tea-leaf strainer or piece of muslin before adding them to the pan (cooking the pips along with the fruit extracts the pectin they contain, helping your jam to set).
• Start the blackberries over a low heat until all the sugar is completely dissolved, then bring to the boil and simmer for 5 mins. Turn off the heat and spoon a little hot syrupy jam onto the chilled saucer. Once it's cool, push it with your finger. If it wrinkles a little, it's ready and has reached setting point. If it's too runny to wrinkle, return the pan to the heat and boil in 2 or 3-minute stages, removing the pan from the heat each time you do the saucer check, until the jam wrinkles.
• Skim off any excess scum, then stir in the knob of butter, if you want - this will help to dissolve any remaining scum. Leave the jam for 15 mins before ladling into sterilised jars - this allows the fruit to settle so it doesn't sink to the bottom. The jam will keep in a cool, dark place for at least 6 months. Refrigerate jars once opened.

BLACKBERRY JAM

Steps:

• Place the berries in a large stainless steel or enamel saucepan. Bring to a full boil over high heat, mashing the berries with a potato masher as they cook. Add the lemon juice and boil hard for 1 minute, stirring and mashing constantly.
• Add the sugar and return the mixture to a boil. Cook, stirring constantly, until it begins to look syrupy and thickens slightly, about 5 minutes. Remove from the heat and test for doneness: a candy thermometer should register 220 degrees F and the mixture should coat the back of a spoon. Run a finger--or a clean object about the width of a finger--through the coat of jam. If the jam does not run and fill the gap, it is done. Otherwise, return the pan to the heat for another 1 to 2 minutes and test again. Be careful not to let the mixture get too thick--it will thicken as it cools.
• When the jam is done, transfer it to a heatproof jar and cool to room temperature, about 2 hours. Cover with a tight-fitting lid and refrigerate. The jam will keep for up to 2 weeks.

BLACKBERRY JAM RECIPE

Steps:

• Prepare calcium water from Pomona pectin. Put 1/2 tsp calcium powder (the small package) and 1/2 cup water in a small jar with a lid. Shake well before using.
• Fill a canning pot with water, set the lid in place, and heat on high heat until just boiling while you're cooking the jam.
• Wash the berries and mash using a potato masher. Leave some larger chunks if you like your jam chunky or really pulverize the fruit for a less chunky blackberry jam.
• Measure mashed berries into a large pot along with 4 teaspoons of the prepared calcium water.
• In a separate bowl, combine the sugar with 4 teaspoons pectin powder (the large envelope) until thoroughly combined.
• Bring berries to a full boil. Add sugar mixture, stirring vigorously for a couple of minutes to dissolve the pectin. Once returned to a full boil, remove from heat.
• Ladle hot berry jam into half-pint jars to within a quarter inch of the rim. A canning funnel makes this easy.
• Wipe jar rims to remove any jam that may have spilled. A clean rim is essential to a good seal.
• Set jar lids in place. Screw bands on finger tight.
• Use a jar lifter to gently submerge jars into hot water in canning pot. Water should cover the top of the jars by an inch. The water will cool somewhat in reaction to the addition of the jars. Return the water to a low boil and then set the timer.
• Process in a boiling water bath for 10 minutes. Add a minute to the boiling time for every 1,000' above sea level.
• Check seals. Lids should be solid and pulled down tight. (if they flex and pop, the jar didn't seal; put unsealed jars in the refrigerator and use those first).
• Remove rings and wash outsides of jars. Store in a cool, dry place.

HOMEMADE BLACKBERRY JAM

Steps:

• Carefully measure out the berries, put them into a very large pot (8qt).
• Carefully measure sugar in a lg bowl.
• Add the pectin to the berries a little at a time, stirring constantly.
• Heat on hi, stirring constantly until mixture comes to a FULL boil.
• Add sugar ALL at once, stirring.
• Bring mixture back to a full hard boil, stirring constantly.
• Boil for 1 minute.
• Remove from heat and ladle into clean, hot 8oz jars, leaving 1/4 inch space at the top.
• Wipe the rim of the jar and put canning lids and rings on fingertip tight.
• Place in canner with very hot water, make sure water is 1 inch above jars.
• Process in boiling water bath for 10 minutes.
• Remove and set them upright on a towel to set for 12 hours.

BLACKBERRY JAM

Steps:

• Mash blackberries in a saucepan with a potato masher. Stir in sugar until juices form; place about 1 tablespoon blackberry juice in a small bowl and stir in cornstarch. Pour cornstarch mixture into saucepan.
• Bring berries to a boil, stirring often, until jam is thickened, about 15 minutes. Stir in cinnamon and allspice. Remove from heat and allow to cool. Transfer jam to a bowl, cover, and refrigerate until chilled. Stir in lemon juice.