While going through my stuff last night I came across a package of 5 BIC lighters (disposable type) that I had purchased and placed in my fire starter box. I noticed the inside of the bubble package had a white misty type coating on the inside and it was all over the lighters too. I opened it up and the entire contents were covered in this very fine powder like material. The top of each lighter looked like it had corrosion on it and would not even turn. I got one to move under extreme pressure with no spark. Also when you push the tab down in the back of lighter for the gas it just did a small release of gas, poof! and that was it. They were all bone dry empty. The white substance must be the fuel dried up, since it has no were to go in the sealed package it just coated the inside. I am guesstimating they are 4-5 years old. Glad I found them when I did, another lesson learned in things to look for and product rotation, shelf life. So, If you have any of these stored away you might want to give them a check, I dont know if it was just my batch or is this an example of what will happen after years of storage to all of them. But when I buy these in the future I will put them on my watch list of items that may expire and rotate them out.