You can take the lid off this way but there is no advantage other than producing a lid with a nice rim on it. I guess you could stick on a felt pad and make trivets of them. It leaves a sharp edge on the can itself so it isn’t an addition to safety. On balance, it’s a minus – take it off the regular way and you can drop the lind into the can so the sharp edge is hidden. On the gripping hand, the sharp edge makes the can into a pretty nice biscuit cutter!