This is a classic, sweet strawberry jam full of flavour and fresh berries.
Prep Time 45minutes
Cook Time 45minutes
Total Time 1hour30minutes
Servings 8500 ml jars
2quartsstrawberriesonce mashed they need to equal 4 cups
1/4cuplemon juicejuice of 1 mammoth lemon
1pouchLiquid Pectincannot substitute with powdered pectin
Gather your ingredients.
Start a pot of water simmering on the stove and put your seals in there to get them hot and soften the rubber.
Sterilize and heat your jars. If they're brand new and/or clean stick them in the oven at 210 F to heat up.
Hull your berries by removing the stem and white pithy part.
Mash your berries. If you like blobs of berries in your jam, make sure you don't overmash them.
Pour your mashed berries into a heavy bottomed pot.
Add 1/4 cup lemon juice, then 1 cup of sugar. Stir.
Let the sugar, berries and lemon juice sit for 15 minutes.
Add the remaining 6 cups of sugar.
Stir the sugar to incorporate it, then bring to a boil stirring constantly. Once you get to a vigorous boil, stir for one minute then remove from heat.
Add liquid pectin and stir.
Stir and skim the jam for 5 minutes.
Grab a hot jar from the oven. At this point you need to work quickly so your jars, jam and seals stay hot. I leave my jam on the stove on low which keeps it hot without further cooking it.
Fill the jars using a ladle and a funnel.
Wipe the jar rim clean with a damp paper towel or cloth then place a seal on top. Screw a ring on the jar, finger tightening only. Screwing on your lid too tightly will prevent a proper seal from forming.
Set your jam aside and wait to hear the rims “pop”
1 Tablespoon = 23 calories.
It's very important to wipe the rim of your jar after filling it. If you don't, and even the slightest residue is left on the glass your jar won't seal.
This recipe comes from Certo (the makers of liquid pectin). It does not call for the jam to be processed in a boiling water bath. However, over the years I've found I get a much stronger seal if I process the filled jars in a boiling water bath for 10 minutes.
To perform a boiling water bath simply submerge your filled and sealed jars into a pot filled with boiling water. Do this immediately after you fill the jars. The water needs to cover the jars by a couple of inches. Time your 10 minutes from the moment the water comes back to the boil.