thats fine
#storage-coldchain 2026-05-21
- fridge_thermo — how cold is too cold, can it actually freeze in a normal fridge 22:11
- evidence_or_not — ok so update from 21 months ago: replaced the fridge, temperature is stable, no more anxiety 22:15
- reta_resting_hr — right so i freeze aliquots and have had them test fine afterwards. others here would not do it and i understand why, ymmv i left a reconstituted vial out overnight… 22:22
- rezept_rolf — cold pack arrived completely liquid, does that mean anything 22:52
- ghent_gradient — coming back to this the door swings four or five degrees every time somebody opens it. the back barely moves, anyway 23:16
how cold is too cold, can it actually freeze in a normal fridge
sorry to jump in freeze thaw cycling is the risk, not one freeze. that is my read of it anyway
freezing reconstituted peptide is the one thing this channel has never agreed on
ok so update from 21 months ago: replaced the fridge, temperature is stable, no more anxiety
freezing reconstituted peptide is the one thing this channel has never agreed on
right so i freeze aliquots and have had them test fine afterwards. others here would not do it and i understand why, ymmv
i left a reconstituted vial out overnight once, sent it for testing out of curiosity, it came back fine
i would bin it
is a five pound fridge thermometer actually worth it
what temperature does a domestic fridge door actually swing to
ok so the practical risk in winter shipping is freezing, and in summer it is heat. plan for the season you are in
log it
a cooler with two gel packs held under eight degrees for eleven hours on a drive
genuine question i left a reconstituted vial out overnight once, sent it for testing out of curiosity, it came back fine
gel packs
cold pack arrived completely liquid, does that mean anything
light exposure matters much less than temperature for these. i still keep them in the carton
how do you keep it cold on a long drive in summer
if you are worried after a bad transit, test it. that is what the testing channels are for
[edited]best travel setup for 18 days away with vials
coming back to this the door swings four or five degrees every time somebody opens it. the back barely moves, anyway
for the archive two to eight degrees. most domestic fridge doors are not in that range and people do not check
my fridge is 6.2
for flying, hand luggage every time. the hold is not temperature controlled the way people assume
test it