Grape Preserves

4 Pounds Concord Grapes
1/2 Cup Water
4 Pounds Sugar

Wash, Drain, And Remove Stems From Grapes. Heat Grapes And Water To The Boiling Point And Cook Until The Seeds Are Free. Rub Through A Fine Sieve Or Food Mill. Discard Skins And Seeds. For Each Cup Of Fruit Add 1 Cup Of Sugar. Simmer For 30 Minutes, Stirring Occasionally To Prevent Burning. Pour Into Hot Sterilized Glass Jars And Seal.