i left a reconstituted vial out overnight once, sent it for testing out of curiosity, it came back fine
#storage-coldchain 2026-02-26
Thursday28 messages6 participantstimes are UTC
Highlights from this day
- lead_time_lars — how cold is too cold, can it actually freeze in a normal fridge 15:14
- relabel_watch — slightly off topic but light exposure matters much less than temperature for these. i still keep them in the carton 17:28
- cold_pack_carla — a few hours at room temperature is almost certainly nothing. a week is a different conversation, i have it written down somewhere 18:27
- two_four_ceiling — coming back to this i freeze aliquots and have had them test fine afterwards. others here would not do it and i understand why 18:48
the door swings four or five degrees every time somebody opens it. the back barely moves
coming back after 12 months, is the pinned storage table still current
does the amber vial thing matter or is it marketing
best travel setup for 19 days away with vials
my fridge is 6.2
buy a thermometer
a cooler with two gel packs held under eight degrees for eleven hours on a drive
freeze thaw cycling is the risk, not one freeze. that is my read of it anyway
two to eight
how cold is too cold, can it actually freeze in a normal fridge
🧊3✅4
if you are worried after a bad transit, test it. that is what the testing channels are for
for flying, hand luggage every time. the hold is not temperature controlled the way people assume
unopened and in-use in the same place is fine. just keep the in-use one where you can reach it
reconstituted solution is the fragile part. that is where the cold chain actually earns its keep
lyophilised powder is genuinely robust. a warm transit is far less likely to matter than people fear
how do you keep it cold on a long drive in summer
do you log the fridge temperature or is that too far
slightly off topic but light exposure matters much less than temperature for these. i still keep them in the carton
📈15👀8
is a five pound fridge thermometer actually worth it
hand luggage
back of the fridge
a few hours at room temperature is almost certainly nothing. a week is a different conversation, i have it written down somewhere
the vial that visibly changed after a warm transit was the one that had already been reconstituted
[edited]solution is not
❤️6🧪14👀13
powder is robust
mon 4.1 / door 7.2
tue 4.0 / door 7.8
wed 4.2 / door 6.9
thu 3.9 / door 7.4
fri 4.1 / door 8.1 <- shopping day
sat 4.3 / door 7.0
sun 4.0 / door 6.8anyone tested a vial before and after a bad transit
[edited]🙏1
coming back to this i freeze aliquots and have had them test fine afterwards. others here would not do it and i understand why