Concord Grape Jelly

1 . Stage

Sort and wash grapes; discard stems. Place grapes 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; pour juice into a strainer over a large bowl to extract juice. Allow juice to stand in a cool place 8 hours to overnight to prevent the formation of crystals in the jelly.

2 . Stage

Strain juice through a double layer of damp cheesecloth.

3 . Stage

Measure 4 cups juice into a large pot; stir in sugar and bring to a rolling boil. Stir in pectin and allow to boil for 1 minute. Remove from heat and skim off any foam on the surface.

4 . Stage

Transfer jelly into hot sterile jars and top with sterile lids; process for 5 minutes in a boiling water bath.