In an effort to put an end to the continuous storage (storing) question threads, I decided to try to consolidate the storage best practices all into one thread. These have been talked about to death, and personally, I'm too lazy to search about to find answers to link to for people so I'll just add all the best practices here. I'm hoping this thread will work as a reference in the future, there's not much (or any) new content here, but my hope is that if someone searches "storage", "storing", "how to store", "nicotine", "flavors", "propylene glycol (pg)", "vegetable glycerin (vg)" in the search bar, this will pop up.

Please note that all of the steps and options I am outlining below are BEST PRACTICES, not requirements. All products (nicotine, flavors, PG and VG) maintain a shelf life of roughly 12 months if stored in a dark location at room temperature without excessive exposure to oxygen.

NICOTINE

Original Post Slightly Modified - Ok, now you have received your order of nicotine, you have tested it to be accurate, it's clear and clean and ready for use. If you ordered more than a 30 day supply, follow the best practice below to ensure you maintain the highest quality.

Nicotine is primarily degraded by heat, light, and oxygen. Eliminating any of these 3 is good, but eliminating all of them is even better. If you follow the nicotine storage instructions below, you can expect your nicotine to last 5+ years (my longest bottle is now just over 4 years old and is perfect).

First things first, you want to break down your order of nicotine into two categories. The amount of nicotine you will consume over the next 30 days, and all the rest. Some will also advocate diluting your nicotine at this stage (to something under 60mg/ml) which I have no argument with as it should slow the degradation of nicotine, however, I personally don't believe it matters as long as you follow ALL of the steps below.

Whatever you are consuming in the next 30 days, place in an amber glass bottle, dropper top discouraged but can be used (polycone cap is preferred). Place this container in a cool dark place, kitchen cabinets work great, if you tend not to run A/C in hot summers, consider placing it in your fridge instead. LABEL THIS BOTTLE AS TOXIC/POISON/NICOTINE so that you don't have any mishaps with drunk friends...If you do utilize the refrigerator, make sure your solution comes to room temperature (take it out ~24 hours before you mix) and make sure it's thoroughly mixed before using.

Place the rest of your nicotine solution in amber glass bottles in 30 day supply sizes. IE, don't put it in 250ml bottles if you only use 30ml a month. We want to minimize the exposure to oxygen as much as possible and this means we don't want to be opening and closing the same bottle. Once you have that quantity broken down into amber glass bottles, label them all with the date received and vendor received from (batch if desired), once again, label as poison/toxic/nicotine etc.

You want to fill these bottles as high as possible to allow for a minimum amount of oxygen in the bottle once sealed. If you aren't filling to the brim you can use an argon wine preserver like this one in order to eliminate the excess oxygen in the bottle. Follow the instructions on the bottle.

Seal your nicotine bottles for storage (just caps or caps + argon), place in a brown paper bag, and place them in the freezer. Remove one bottle at a time as needed. Try not to place them on the door or near the ice maker to avoid excess agitation. Polycone caps are preferred for all long term nicotine storage.

Nude Nicotine offers Nude Armor nicotine that is already prepped for long term frozen storage. I have no first hand knowledge of this product.

FLAVORS

Store your flavors in a cool (room temp or slightly below) dark place. Refrigeration is an option but some compounds can crystallize if stored around or below ~40F. If you do chose to store your flavors in the refrigerator be sure to let them come to room temperature and then mix thoroughly before use. Standard best practice is to store them in a cabinet/box, or anywhere outside of exposure to excessive light. Do not store in the freezer.

VEGETABLE GLYCERIN (VG)

Same storage recommendations as flavors, however, if you are truly looking to stock up on VG (no idea why as it will always be available) you can store in the freezer using similar methods as nicotine for maximum shelf life.

PROPYLENE GLYCOL (PG)

Same storage recommendations as Vegetable Glycerin (VG).