[Failure] vendor packed a cold box with no thermal mass. just foam and hope.
vendor packed a cold box with no thermal mass. just foam and hope. This is a description of what happened to me and not a plan for anybody else. 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.…
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.
the door shelf is the worst place in the fridge
Asked SWB which lines they hold regionally and got a straight list back. That answered my summer ordering question completely.
light matters more than people think for some of these
Small fix — refrigerated, not frozen, once it is in solution.
Correcting myself above: the transit was 4 days, not the figure I posted. Same conclusion, wrong number.
You cannot infer potency from a temperature record.
Adding the practical version: ask which lines are held regionally before you order in July.
Powder or already in solution?
a logger costs less than a vial and answers the question permanently