Blackberry Acid
["12 lb. blackberries", "1 qt. boiling water", "5 oz. tartacid berries", "sugar"]
["Thoroughly crush berries.", "Pour boiling water over them.", "Let stand overnight 12 hours.", "Strain through a flour sack and let drain thoroughly.", "Do not squeeze.", "To each measure of this liquid, add the same amount of sugar to the mixture.", "Add the bottle of acid to the mixture.", "Put mixture in a container and seal."]
["blackberries", "boiling water", "tartacid berries", "sugar"]