Nic thrives in the cold, you dont want oxygen htting the Nic, and storing your Nic in the Freezer is fine and where it can go for long term storage. I have some in my freezer that is over 2 yrs old, and some that wasnt frozen that is over 2yrs old and I did this on purpous to see what the difference would be, the Nic in the freezer still looks fine and is, the Nic that wasnt in the freezer I wouldnt use and has turned very dark and smells bad. As for storing juice with flavoring, mine goes in the fridge until I'm ready to use that bottle of juice then out it comes of the fridge. Also juice with flavoring in it in my opinion doesnt last past a year, I find I even don't like it past the 7-8 month mark it changes for the worst at this point in my opinion. The flavoring molecules is what makes juice go bad along with other additives, so depending on what flavorings & additives are in a juice some could last longer then others I've also found, but your not getting 2 yrs out of a flavored juice. I know I dont use Ketchup, mustard, and other food grades that are 2 yrs old or more then a year for that matter so I'm not using juice that old either. To me fresh is best and always will be and freezing your 100mg or whatever MG Nic you have in the freezer is also fine I'm the proof of my own test. All the other ingredients are simple to get so no need to stock up on flavorings,PG,VG they can be had an at your door step in 2-3 days. Stockpiling just doesnt make sense to me other then then a high MG of plain Nic juice.