https://durgan.org/2022/August%processed Thirty two hundred grams of tomatoes were processed into four liters of juice. 800 ml per liter. Process was wash,,cook slurry, strain, pour into liter jars and pressure can at 15 PSI for 15 minutes. I showed wiping the canning gasket surface with liquid cooking oil. This is done each time the lid is removed. It ensures the gasket lasts for years.