warren got to the heart of the matter in his first post on this thread. The whole trigger is breaking the seal on the tin. This is done by slipping a coin, screwdriver, or a very sturdy fingernail into the little spot provided at the edge of the lid and lifting. A pssst release of the vacuum will follow, and then the lid screws off with ease. You can use a jackhammer, Bobcat tractor, or five hundred pound bomb, but usually the tin and tobacco are lost in this over-engineering. Stick to the quarter or screwdriver and listen for the pssst. So warren gave the answer, and I decided to blabber on about it some more.