light exposure matters much less than temperature for these. i still keep them in the carton, ymmv
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#storage-coldchain 2026-04-02
Thursday29 messages8 participantstimes are UTC
Highlights from this day
- swirl_not_shake — light exposure matters much less than temperature for these. i still keep them in the carton, ymmv 17:39
- impersonator_ip — update on the earlier thing i log the fridge temperature daily and the room has never let me forget it, your mileage will differ 18:01
- impersonator_ip — do you log the fridge temperature or is that too far the door swings four or five degrees every time somebody opens it. the back barely moves 18:05
- VialBot — Recon calculator: 40mg in 2.5ml = 10mg/ml. 18:21
- vale_vials — freeze thaw cycling is the risk, not one freeze. that is my read of it anyway 18:50
two to eight degrees. most domestic fridge doors are not in that range and people do not check
does the amber vial thing matter or is it marketing
if you are worried after a bad transit, test it. that is what the testing channels are for, i could be wrong
update on the earlier thing i log the fridge temperature daily and the room has never let me forget it, your mileage will differ
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how do you keep it cold on a long drive in summer
do you log the fridge temperature or is that too far
the door swings four or five degrees every time somebody opens it. the back barely moves
Recon calculator: 40mg in 2.5ml = 10mg/ml.
lyophilised at room temp for 10 days in transit, worried or not
hand luggage
thats fine
i would bin it
does the fridge in a hotel room count as a fridge
freeze thaw cycling is the risk, not one freeze. that is my read of it anyway
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lyophilised powder is genuinely robust. a warm transit is far less likely to matter than people fear
not the door
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two to eight
freezing reconstituted peptide is the one thing this channel has never agreed on
unopened and in-use in the same place is fine. just keep the in-use one where you can reach it
while im here i left it out overnight by accident, bin it or use it
how cold is too cold, can it actually freeze in a normal fridge
for flying, hand luggage every time. the hold is not temperature controlled the way people assume
for the archive how long is reconstituted actually good for at room temperature
my fridge is 7.4
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test it
hotel minibars are frequently not cold enough. i take a thermometer, which is ridiculous and also correct
powder is robust
anyone tested a vial before and after a bad transit
i have never had a lyophilised vial fail after a warm transit and i have had some bad ones