[Discussion] the packaging advice in here is 3 years out of date
the packaging advice in here is 3 years out of date. It is the sort of thing everyone half-believes and nobody writes down. 3 years. Those are measured, not estimated, and not rounded up in my favour. Gel pack fully liquid on arrival, powder tested 97.5% against a claimed 97.0% afterwards. The pack had done its job…
Lyophilisation removes the water that drives most degradation pathways. That is why the dry cake is comparatively robust and the reconstituted solution is not.
Lyophilisation removes the water that drives most degradation pathways.
vito_chowdhury is right that the pack failing is not the material failing. Two separate claims.
You cannot infer potency from a temperature record. The record tells you what happened to the box; only a test tells you what happened to the material.
Left up and added to the lane table. Origin, destination and month were all included, which is all we ask.
a logger costs less than a vial and answers the question permanently
Agreed. The dry powder is the robust state; it is the solution that needs the care.
Small fix — refrigerated, not frozen, once it is in solution.
What was the packaging — rigid outer, gel packs, anything insulating?