1. Certo products are not interchangeable
  2. Look for best before/expiry date on Certo Pectin packages
  3. The right amount of sugar is critical for a good set
  4. Do not double recipes. Jam or jelly may not set
  5. Measure fruit or juice after preparation - use immediately
  6. Use firm ripe fruit - overripe or extra fruit not called for will affect the set
  7. Crush berries with a potato masher
  8. Sterilize jars or freeze jams
  9. Unsweetened frozen fruit can be used
  10. Use food processors to prepare fruit only when specifically recommended

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