By Tessie2



5 cups grape juice (about 4 1/2 pounds Concord grapes and 1/2 cup water)
1 package powdered pectin
6 cups sugar
Prepare juice following recipe for Grape jelly, no pectin added. Use 4 1/2 pounds Concord grapes and 1/2 cup water. Combine grape juice and pectin in a large saucepot. Bring to a boil over high heat, stirring constantly. Add sugar, stirring until dissolved. Return mixture to a rolling boil. Boil hard for 1 minute, stirring constantly. Skim foam if necessary. ladle hot jelly into hot, sterilized jars, leaving 1/4th inch headspace. Adjust two-piece caps. process 5 minutes in a boiling water canner.