buy a thermometer. mine reads 6.2 on the door and two degrees lower at the back
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 6.8#storage-coldchain 2026-03-31
Tuesday40 messages9 participantstimes are UTC
Highlights from this day
- acetate_ash — buy a thermometer. mine reads 6.2 on the door and two degrees lower at the back 07:38
- still_here_2024 — the door swings four or five degrees every time somebody opens it. the back barely moves, ymmv 08:31
- VialBot — Batch lookup SG-1177: 8 independent reports on file, earliest 2025-12-01. 08:32
- slow.taper — update on the earlier thing door shelf or back of the fridge 10:33
- tb500_tobias — a few hours at room temperature is almost certainly nothing. a week is a different conversation 13:15
anyone had a vial visibly change after a warm transit
power cut for 8 hours, fridge stayed shut, am i fine
08:29quiet.hours pinned a message to this channel
the door swings four or five degrees every time somebody opens it. the back barely moves, ymmv
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Batch lookup SG-1177: 8 independent reports on file, earliest 2025-12-01.
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right so how do you keep it cold on a long drive in summer
unrelated but update from 11 months ago: replaced the fridge, temperature is stable, no more anxiety
hand luggage
lyophilised powder is genuinely robust. a warm transit is far less likely to matter than people fear
parcel sat in a hot mailbox for 9 hours, is it dead
freeze thaw cycling is the risk, not one freeze. that is my read of it anyway
unopened and in-use in the same place is fine. just keep the in-use one where you can reach it
nobody here can tell you a vial is safe. we can tell you what has and has not survived for us
i log the fridge temperature daily and the room has never let me forget it
for flying, hand luggage every time. the hold is not temperature controlled the way people assume
update on the earlier thing 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
update on the earlier thing door shelf or back of the fridge
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*Medutest not the other one
freezing reconstituted peptide is the one thing this channel has never agreed on
do i need to worry about light exposure or is that overthinking
a cooler with two gel packs held under eight degrees for eleven hours on a drive, happy to be corrected
i have never had a lyophilised vial fail after a warm transit and i have had some bad ones
the vial that visibly changed after a warm transit was the one that had already been reconstituted, from memory
a liquid cold pack tells you it was above freezing, not that your vial cooked, ask me again in a month
i keep everything at the back of the middle shelf, never the door, from memory
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light exposure matters much less than temperature for these. i still keep them in the carton
reconstituted solution is the fragile part. that is where the cold chain actually earns its keep
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lyophilised at room temp for 7 days in transit, worried or not
a few hours at room temperature is almost certainly nothing. a week is a different conversation
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i left a reconstituted vial out overnight once, sent it for testing out of curiosity, it came back fine, someone check my working
if you are worried after a bad transit, test it. that is what the testing channels are for
not the freezer
does the fridge in a hotel room count as a fridge
gel packs
two to eight degrees. most domestic fridge doors are not in that range and people do not check
unrelated but log it