Wash and pick over 1 1/2 quarts ripe berries and crush; there should be 4 1/2 cups. Combine in kettle with 2 tablespoons fresh lemon juice and 7 cups sugar; mix well. Bring to full rolling boil over high heat; boil hard for 1 minute while stirring.

Remove from heat and stir in 6 ounces of liquid pectin. Skim off foam. Continue stirring and skimming for 5 minutes to prevent floating fruit. Ladle into hot jars and seal. Makes 9 (1/2 pint) jars.