two to eight
[edited]⚠️15👀6
two to eight
[edited]nobody here can tell you a vial is safe. we can tell you what has and has not survived for us, n of 1 obviously
update on the earlier thing if you are worried after a bad transit, test it. that is what the testing channels are for
freeze thaw cycling is the risk, not one freeze. that is my read of it anyway
my fridge is 5.6
coming back to this hotel minibars are frequently not cold enough. i take a thermometer, which is ridiculous and also correct
not the freezer
i log the fridge temperature daily and the room has never let me forget it
thats fine
the practical risk in winter shipping is freezing, and in summer it is heat. plan for the season you are in