Grogu said:
If you take Peter @ Janoshik at his word, you could just stick the vials in the garage for 10 years, send them off for testing... everything ought to come back fine... then reconstitute and pin.
Jokes aside, I've participated in and run quite a few testing groups, and in this most recent one, somebody asked me for the first time how to store a vial before shipping it to Jano. My answer was either a cool, dry spot or the freezer. Warm conditions seem like something to steer clear of, while the opposite is probably fine. The concern is degradation skewing the test results, and warm conditions make degradation more likely.
On the fridge question: for my own peptides, I usually leave them in a cabinet for a few days, then label them and move them to the freezer. To be clear, plenty of vials I'd previously frozen have been sent for testing, and every one came back okay.