two to eight degrees. most domestic fridge doors are not in that range and people do not check
[edited]#storage-coldchain 2026-03-13
Friday33 messages8 participantstimes are UTC
Highlights from this day
- private_script_pri — power cut for 6 hours, fridge stayed shut, am i fine 13:07
- secretagogue_sy — reconstituted solution is the fragile part. that is where the cold chain actually earns its keep 13:47
- deamidation — freezing reconstituted peptide is the one thing this channel has never agreed on power cut with the door shut for a few hours is fine. a full fridge holds temperature… 14:52
- oasis_ola — anyone tested a vial before and after a bad transit 15:02
quick one i have never had a lyophilised vial fail after a warm transit and i have had some bad ones, not advice obviously
power cut for 6 hours, fridge stayed shut, am i fine
[edited]janoshik-kp-0925.pdf
2 pages · 784 KB · not retained in the public archive
if you are worried after a bad transit, test it. that is what the testing channels are for
the door swings four or five degrees every time somebody opens it. the back barely moves, ymmv
not the door
my fridge is 7.4
🙏8
reconstituted solution is the fragile part. that is where the cold chain actually earns its keep
✅9🤝8🎉15
what temperature does a domestic fridge door actually swing to
unrelated but update from 13 months ago: replaced the fridge, temperature is stable, no more anxiety
i would use it
[edited]does the fridge in a hotel room count as a fridge
📉4
thats fine
i log the fridge temperature daily and the room has never let me forget it
power cut with the door shut for a few hours is fine. a full fridge holds temperature surprisingly well
freezing reconstituted peptide is the one thing this channel has never agreed on
power cut with the door shut for a few hours is fine. a full fridge holds temperature surprisingly well
anyone tested a vial before and after a bad transit
❤️9🔥14🧪2
the practical risk in winter shipping is freezing, and in summer it is heat. plan for the season you are in
a few hours at room temperature is almost certainly nothing. a week is a different conversation
the door swings four or five degrees every time somebody opens it. the back barely moves
unrelated but hotel minibars are frequently not cold enough. i take a thermometer, which is ridiculous and also correct
freeze debate again
a liquid cold pack tells you it was above freezing, not that your vial cooked
i keep everything at the back of the middle shelf, never the door
buy a thermometer. mine reads 6.2 on the door and two degrees lower at the back
a cooler with two gel packs held under eight degrees for eleven hours on a drive
coming back after 18 months, is the pinned storage table still current
nobody here can tell you a vial is safe. we can tell you what has and has not survived for us
unopened and in-use in the same place is fine. just keep the in-use one where you can reach it
sorry to jump in light exposure matters much less than temperature for these. i still keep them in the carton
test it