|Strawberry jam with Frozen Berries
Packed in Sugar or Syrup
To make with powdered pectin, measure sugar and set aside. Thoroughly mix powdered pectin with thawed berries and juice. Bring quickly to a full boil, stirring constantly. Add sugar, continue stirring, and heat to a full rolling boil. Boil hard for one minute, stirring constantly. Remove from heat and skim off foam. Stir for 5 minutes, skimming as necessary. Fill clean, hot, sterilized containers. Cap with 2-piece canning lids and process 5 minutes in a boiling water bath. To make with liquid pectin, mix thawed berries and juice with sugar. Stirring constantly, bring mixture to a full boil and boil hard one minute.
Remove from heat and immediately stir in liquid pectin. Skim off foam. Alternately stir and skim off foam for 5 minutes. Fill clean, hot, sterilized containers. Cap with 2-piece canning lids and process 5 minutes in a boiling water bath.