#storage-coldchain 2025-08-23

my fridge is 4.8

update from 14 months ago: replaced the fridge, temperature is stable, no more anxiety

i keep everything at the back of the middle shelf, never the door
a liquid cold pack tells you it was above freezing, not that your vial cooked

freeze debate again

buy a thermometer

i have never had a lyophilised vial fail after a warm transit and i have had some bad ones

i left a reconstituted vial out overnight once, sent it for testing out of curiosity, it came back fine

anyone had a vial visibly change after a warm transit

the practical risk in winter shipping is freezing, and in summer it is heat. plan for the season you are in

i log the fridge temperature daily and the room has never let me forget it

hand luggage

power cut for 7 hours, fridge stayed shut, am i fine

is there a difference in stability between the compounds

genuine question the door swings four or five degrees every time somebody opens it. the back barely moves

back of the fridge

hotel minibars are frequently not cold enough. i take a thermometer, which is ridiculous and also correct

i would use it

test it

for flying, hand luggage every time. the hold is not temperature controlled the way people assume

i left it out overnight by accident, bin it or use it

my fridge is running at 3.1, is that out of range

New independent result logged — BCH, lot H-2814, purity 99.4% (PeptideMeter).

gel packs