Concord Grape Jelly Recipe

Sort and wash grapes and remove stems. Place them into a large kettle and crush them. Add water cover and bring to a boil over high heat. Reduce heat to low and simmer for 10 minutes. Remove from heat and extract juice. Allow the juice to stand in a cool place overnight to prevent the formation of crystals in the jelly.

Strain the juice through a double thickness of damp cheesecloth. Measure 4 cups of the juice into a large pot. Stir in the sugar. Quickly bring to a full rolling boil. Stir in pectin and allow to boil hard for 1 minute. Remove from heat and skim off foam. Pour into hot sterile jars and process for 5 minutes in a boiling water bath.