sorry to jump in the practical risk in winter shipping is freezing, and in summer it is heat. plan for the season you are in
#storage-coldchain 2026-06-15
Monday24 messages5 participantstimes are UTC
Highlights from this day
- thirty_min_wait — the vial that visibly changed after a warm transit was the one that had already been reconstituted, ymmv 18:00
- sharps_comedy — does the fridge in a hotel room count as a fridge 19:01
- bac_water_bill — update on the earlier thing lyophilised powder is genuinely robust. a warm transit is far less likely to matter than people fear 19:43
- bac_water_bill — sorry to jump in coming back after 6 months, is the pinned storage table still current 19:45
- thirty_min_wait — i freeze aliquots and have had them test fine afterwards. others here would not do it and i understand why lyophilised powder is genuinely robust. a warm transit is… 19:50
the vial that visibly changed after a warm transit was the one that had already been reconstituted, ymmv
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buy a thermometer. mine reads 4 on the door and two degrees lower at the back
hand luggage
light exposure matters much less than temperature for these. i still keep them in the carton
a cooler with two gel packs held under eight degrees for eleven hours on a drive
buy a thermometer
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i would bin it
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does the fridge in a hotel room count as a fridge
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a few hours at room temperature is almost certainly nothing. a week is a different conversation
nobody here can tell you a vial is safe. we can tell you what has and has not survived for us
i left a reconstituted vial out overnight once, sent it for testing out of curiosity, it came back fine
how do you keep it cold on a long drive in summer
nobody here can tell you a vial is safe. we can tell you what has and has not survived for us
update on the earlier thing lyophilised powder is genuinely robust. a warm transit is far less likely to matter than people fear
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genuine question freezing reconstituted peptide is the one thing this channel has never agreed on
sorry to jump in coming back after 6 months, is the pinned storage table still current
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for flying, hand luggage every time. the hold is not temperature controlled the way people assume, n of 1 obviously
i freeze aliquots and have had them test fine afterwards. others here would not do it and i understand why
lyophilised powder is genuinely robust. a warm transit is far less likely to matter than people fear
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
not the door
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the door swings four or five degrees every time somebody opens it. the back barely moves
nobody here can tell you a vial is safe. we can tell you what has and has not survived for us
powder is robust