hand luggage
#storage-coldchain 2025-09-01
Monday22 messages7 participantstimes are UTC
Highlights from this day
- group_buy_gwen — follow up flying with vials, hand luggage or checked 16:38
- group_buy_gwen — unopened and in-use in the same place is fine. just keep the in-use one where you can reach it i keep everything at the back of the middle shelf, never the door 16:39
- VialBot — New independent result logged — ERP, lot D-0718, purity 99.2% (VendorInvestigate). 16:40
- group_buy_gwen — parcel sat in a hot mailbox for 6 hours, is it dead 17:17
- VialBot — Digest for the week of 2025-06-30 has been published. 17:40
log it
solution is not
do i need to worry about light exposure or is that overthinking
cold pack arrived completely liquid, does that mean anything
a liquid cold pack tells you it was above freezing, not that your vial cooked
powder is robust
anyone tested a vial before and after a bad transit
reconstituted solution is the fragile part. that is where the cold chain actually earns its keep
follow up flying with vials, hand luggage or checked
📉4
unopened and in-use in the same place is fine. just keep the in-use one where you can reach it
i keep everything at the back of the middle shelf, never the door
New independent result logged — ERP, lot D-0718, purity 99.2% (VendorInvestigate).
a few hours at room temperature is almost certainly nothing. a week is a different conversation
parcel sat in a hot mailbox for 6 hours, is it dead
| Condition | Lyophilised | Reconstituted |
|---|---|---|
| 2-8 °C | fine, long term | fine, weeks |
| Room temp, days | fine in every report here | reported fine, shorter |
| Room temp, weeks | reported fine | do not |
| Warm transit, 30 °C+ | no failure logged | one visible degradant peak |
| Frozen once | fine | contested, no consensus |
| Freeze-thaw cycled | fine | the room says no |
two to eight degrees. most domestic fridge doors are not in that range and people do not check, for what its worth
i would use it
buy a thermometer
does anyone freeze reconstituted vials or is that madness
Digest for the week of 2025-06-30 has been published.
📉1⚠️14
back of the fridge
for flying, hand luggage every time. the hold is not temperature controlled the way people assume