3 1/2 cups guava juice 1/2 cup lemon juice 7 cups sugar 1 pouch (3 oz) liquid pectin Sterilize jars. In a large saucepan, combine juices and sugar. Bring to a boil, stirring constantly. Immediately stir in pectin; bring to a boil and boil hard for 1 minute, slipping constantly. Remove from heat; skim foam….