Do I have to add calcium water to my jam or jelly?
Pomona’s Pectin is activated by calcium, so calcium has to be present in the mixture either naturally or added by you. Since most people don’t know the calcium content of their fruit, we recommend a calcium water amount in every recipe to be sure there is calcium in the mixture. If your fruit has calcium in it naturally, you don’t need to add the calcium water.
The calcium water (1/2 teaspoon calcium powder mixed into 1/2 cup water) can be stored in the fridge for several months, and will just need to be tossed if it has any floating bits or smell or color. It can also be stored in the freezer where it will keep indefinitely, but will need to be thawed before use. We also highly recommend labeling your jar of calcium water, as it seems to be the first item tossed when cleaning the fridge/freezer . 😊
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How to Use Pomona's Pectin