for flying, hand luggage every time. the hold is not temperature controlled the way people assume
#storage-coldchain 2026-03-23
Monday45 messages10 participantstimes are UTC
Highlights from this day
- forty_five_kg — ok so buy a thermometer. mine reads 6.2 on the door and two degrees lower at the back, ill dig out the number 15:23
- forty_five_kg — unopened and in-use in the same place is fine. just keep the in-use one where you can reach it 15:32
- is_this_forever — coming back after 6 months, is the pinned storage table still current 18:13
- is_this_forever — a liquid cold pack tells you it was above freezing, not that your vial cooked 18:22
if you are worried after a bad transit, test it. that is what the testing channels are for
my fridge is running at 3.1, is that out of range
a few hours at room temperature is almost certainly nothing. a week is a different conversation
a cooler with two gel packs held under eight degrees for eleven hours on a drive
flying with vials, hand luggage or checked
quick one the practical risk in winter shipping is freezing, and in summer it is heat. plan for the season you are in
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follow up update from 9 months ago: replaced the fridge, temperature is stable, no more anxiety
does anyone freeze reconstituted vials or is that madness
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freezing reconstituted peptide is the one thing this channel has never agreed on
my fridge is 4.8
i have never had a lyophilised vial fail after a warm transit and i have had some bad ones
parcel sat in a hot mailbox for 3 hours, is it dead
two to eight degrees. most domestic fridge doors are not in that range and people do not check
is_this_foreverif you are worried after a bad transit, test it. that is what the testing channels are…
do i need to worry about light exposure or is that overthinking
the door swings four or five degrees every time somebody opens it. the back barely moves
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ok so buy a thermometer. mine reads 6.2 on the door and two degrees lower at the back, ill dig out the number
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powder is robust
log it
unopened and in-use in the same place is fine. just keep the in-use one where you can reach it
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nobody here can tell you a vial is safe. we can tell you what has and has not survived for us
two to eight
nine_nine_onequick one the practical risk in winter shipping is freezing, and in summer it is heat.…
do you log the fridge temperature or is that too far
is a five pound fridge thermometer actually worth it
power cut for 8 hours, fridge stayed shut, am i fine
coming back to this freeze thaw cycling is the risk, not one freeze. that is my read of it anyway
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
i freeze aliquots and have had them test fine afterwards. others here would not do it and i understand why
Inter-lab diff for lot E-2205: 98.1% vs 97.4%. Within expected range.
lyophilised powder is genuinely robust. a warm transit is far less likely to matter than people fear
buy a thermometer
hand luggage
not the door
janoshik-b-0114.pdf
2 pages · 345 KB · not retained in the public archive
i would use it
i left a reconstituted vial out overnight once, sent it for testing out of curiosity, it came back fine
i keep everything at the back of the middle shelf, never the door
coming back after 6 months, is the pinned storage table still current
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thats fine
a liquid cold pack tells you it was above freezing, not that your vial cooked
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not the freezer
how do you keep it cold on a long drive in summer
best travel setup for 22 days away with vials
freeze debate again