[PSA] excursion is not what most of this community thinks it is
Explainer, as requested in the last thread: excursion is not what most of this community thinks it is. A transit temperature logger records a distribution, and time above a threshold matters as much as peak temperature. That is the argument for logging rather than guessing. Gel packs are designed for a duty cycle. A…
Regional stock changes the question rather than answering it: shorter lanes mean less exposure and fewer variables, which is why the warehouse question is worth asking before ordering in summer.
the door shelf is the worst place in the fridge
a logger costs less than a vial and answers the question permanently
What was the packaging — rigid outer, gel packs, anything insulating?
Which lane, and had it been quoted at that transit time?
Disagree with the panic framing. Lyophilised material tolerates ordinary transit conditions far better than these threads imply.
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.
This. A liquid gel pack on arrival tells you about the pack’s duty cycle, not about the vial.