Homemade Grape Jelly Jam Vintage Canning Recipe is old fashioned delicious goodness with some updated canning processing wisdom thrown in.
Ingredients:
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4 cups prepared juice (about 3 pounds fully ripe Concord grapes)
7 cups (3 pounds) sugar
1/2 bottle of Certo Fruit Pectin
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Directions:
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First, prepare the fruit. Stem about 3 pounds fully ripe grapes and crush thoroughly. Add 1/2 cup water; bring to a boil and simmer, covered, 10 minutes. Place in jelly cloth or bag and squeeze out the juice. Measure 4 cups into a very large saucepan. (If wild or other tight-skinned grapes are used, use 3 1/2 cups juice and add 1/4 cup strained lemon juice).
To the measured juice in a saucepan, add the exact amount of sugar specified in the recipe. Mix well.
Place over high heat and bring to a boil, stirring constantly. At once stir in Certo. Then bring to a full rolling boil and boil hard for 1 minute, stirring constantly. Remove from heat, skim off foam with a metal spoon, and pour quickly into glasses.
Pour into sterilized mason jars and process for 10 minutes
