http://www.durgan.org/2015/September...%20Juice/HTML/ 11 September 2015 Niagara Grape Juice
Ten pounds of Niagara Grapes were harvested from the garden and made into 9 liters of juice. The grapes were removed from the cluster by swiping across a mesh screen, covered with water, cooked about 20 minutes and blended into a slurry. The slurry was out through a food mill with a 2 mm mesh screen to remove seeds and picking debris. The juice was placed in 9 one liter jars and seven were pressure canned at 15 PSI for 15 minutes for storage. Two jars are for current use. Pictures depict the process.