The most common reason for jelly didn't set is cooking the jelly too high or too low. If you cook it too low, the pectin won't set set up. Cook too high, and you can break down the pectin. For most jam and jelly recipes, you'll add the sugar and bring the fruit to a full boil and boil for 1 to 2 minutes.
How do you fix a jam that hasn't set?
How to Save Runny Jam
- First, you wait. ...
- If it still hasn't set, it's time to determine how much jam needs to be recooked. ...
- For every 4 cups of jam that needs to be remade, whisk together 1/4 cup sugar and 1 tablespoon powdered pectin.
- Pour the jam into a low, wide pan and add the sugar and pectin combo.
What do you do if your jam is too runny?
A runny batch will just happen occasionally. If, after waiting, you find the jam is still too loose for your liking, empty the jars back into a wide pot and cook again. You can simply reduce the jam to your liking, or you can also add a small amount of commercial pectin to help the process.
