I just cracked open a one year old tin or dunhill flake. It was my first aged tin I have opened. The tobacco was great however I noticed the corners of the tins were rusting a little on the inside There was no problem with the seal but I am wondering how long it will last after seeing rust after just one year. I have about 9 more of these. This was packed in a sleeve of five of which I just cracked. I live in a really dry place and they were in a storage area of my finished basement.