A year ago I headed about jars and started keeping all my toby in jars. I wanted to have a larger jar which I would use for my go to smoke. I got a nice hinged jar for this toby, ordered 6 oz and filled the jar. I then moved and have been smoking out of whatever I buy at the local shop. I just went and checked on some of my older tobacco. I found the jar to be hazzed on the inside. What is going on? I have never seen this before. Picture is attached.