I was curious about this. I have some, that has been in a dark cool place, that is about 2 years old. It has changed color, dark yellow orange. Wondering if it is still safe to vape or should I get rid of it?
myself I use mason jars, with the glass covered in tape so no light can get to them, in the freezerI would not store my nic in those plastic bottles for long term. There are not airtight and the oxygen will oxidize them. I use amber glass bottles for anything I store more than a few months.
I had used the big amber boston rounds, but you can't stack emWiz labs website suggests storing in glass for long term. Personally I transfer to 120ml brown bottles, label clearly then store in freezer.