Jams & Preserves

Canning Facts
  • Berries are low in pectin, the fiber that helps jam set
  • To thicken berry jam, cook it longer or add commercial pectin
  • Jams are lower in sugar; jellies are more heavily sweetened
  • Sugar doesn’t preserve jam; the right balance of acid and heat does.

Excerpted from Tart and Sweet by Kelly Geary and Jessie Knadler. All rights reserved.
Copyright ©2010 by Kelly Geary and Jessie Knadler.