Canning 101: How To Save Runny Jam (2024)

FAQs

Canning 101: How To Save Runny Jam? ›

If it still hasn't set, it's time to determine how much jam needs to be recooked. You don't want to remake more than 8 cups (4 pints) at a time. For every 4 cups of jam that needs to be remade, whisk together 1/4 cup sugar and 1 tablespoon powdered pectin.

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. Wash and sterilize the jars and try again. While you can simply reduce the jam to your liking, you can also add commercial pectin or chia seeds to the reducing jam to guarantee thickening.

Add 25 mL (2 tbsp) sugar per 250 mL (1 cup) of jam or jelly being recooked. Return to the heat and bring to a full rolling boil, stirring constantly. Boil rapidly for 30 seconds. Remove from heat, skim off foam, fill hot sterilized jars, seal and process 5 minutes in a boiling water bath.

1) The Saucer Test

Once you think that your jam has reached its setting point or has thickened, spoon a bit of the jam on the cold plate and tilt it vertically so the jam runs. You are aiming for a slow descent, not a runny mess. If it runs slow, it's set!

If it isn't scorched though, here are some ideas to try: Slowly heat it in the microwave a few seconds at a time and then use it as usual. If it is still too thick, add some water while heating it in the microwave and then use it as a delicious and unusual pancake or ice cream syrup.

You don't want to remake more than 8 cups (4 pints) at a time. 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.

From the description "Rock-solid" you guess correctly that you have overcooked your jam mixture. The process of overcooking your jam mixture results in most of the water content evaporating. In candy terms, your jam is probably somewhere between Hard-Ball stage to Caramelized stage.

Reprocessing Unsealed Jars

If a jar does not seal but has been correctly processed according to safe processing methods, it can be re-canned if identified within 24-hours.

In order for a jam to set, you need enough pectin and acid. If either are missing, the jam or jelly won't set. You can test for both pectin and acid levels. Then, if there is enough pectin, the jam needs to be boiled for long enough to allow the pectin molecules to bind together.

Is it safe to eat watery jam? ›

Even if you had opened it today, the sugar acts as a preservative, and it would still be safe. The moisture has been drawn out by the Heat. Just mix it all back together, and you'll be fine. NEVER eat anything which you bring home from the store and you find has been previously opened.

If it wrinkles and feels gel-like, it's ready to bottle. If it doesn't, keep cooking and test it every 5 minutes.

For each quart of jam or jelly to be fixed, mix 1/4 cup sugar, 1/4 cup water or white grape juice, 2 tablespoons bottled lemon juice, and 4 teaspoons powdered pectin in a large pot. So, if you made a batch of jam and have 10 eight-ounce jars that didn't set, that would be an average batch (10 cups or 2.5 quarts).

If you prefer a softer set, you can always use less pectin than called for in our recipes. We would suggest you experiment by using ¼ to ½ teaspoon less pectin than the recipe calls for, or perhaps up to a teaspoon less for recipes that call for 4 teaspoons of pectin. You would keep the calcium water amount the same.

Once the jam is done cooking, it may look a little thin, but just remember that it will thicken in the fridge as it cools. For a thicker version (good for fruits that are low in pectin, like blueberries, raspberries, strawberries, and peaches), add a tablespoon of pectin powder.

You can boil it down on the stove to thicken it up a bit... maybe add in some gelatin too. Also, to make it easier on you, you can spread the jam filling thin on a baking sheet and freeze it and then put it on the cake while it's frozen so it'll go on as one sheet.

If, on the other hand, the jam is rock solid, that means you've gone too far and cooked it too long. You can try adding a little water to thin it out, but bear in mind that after overcooking a jam, you can't really get those fresh fruit flavors back.