The operation of this great kitchen helper is very clear and an awesome tool to have in your kitchen. I was always afraid to operate this great tool but now to see how safe pressure cookers have become has made my life much easier...Since I have been on a plant base way of eating, legumes are my go to protein but normally would be a deterrent because of the time it takes to cook beans; but cooking in the pressure cooker shines a whole new light on the situation for it saves an enormous amount of time.  What normally would take 45 minutes to an hour to cook takes 15 minutes.....absolutely awesome.