We're often asked about pressure canning with Kuhn Rikon pressure cookers. When the first red ring appears on the Kuhn Rikon pressure valve, the internal pressure has been raised to 8 pounds per square inch above the external pressure (235 degrees Fahrenheit). When the second red ring on the valve appears, the internal pressure has been raised to 15 pounds per square inch above the external pressure (254 degrees Fahrenheit). Kuhn Rikon doesn't offer canning directions, but if the 8 & 15 lb. pressure indications fit into the canning directions you're following, Kuhn Rikon cookers will do a great job for you! |