If you stir the pectin powder into an amount of sweetener that is beyond the range shown in our recipes, or have too much sweetener already added to the fruit, the pectin powder will be inhibited from dissolving and may go grainy. Pomona’s Pectin can only properly dissolve in a low-sugar environment, so it is necessary to keep the sweetener low (within our range) while you are dissolving the pectin in the boiling fruit mixture. Additional sweetener can be added after the pectin is fully dissolved.
If your jam or jelly is grainy, see My Jam or Jelly Didn’t Jell – Can I Fix It? Scroll down the page to “Fix Your Jam or Jelly” and click on Fix F: Made jam or jelly with more sweetener than specified in the recipe and the jam or jelly IS grainy or gritty.
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Posted in: 7. Troubleshooting