Cold-chain shipping — looking for input

pete_nash said:

The mechanism and the magnitude are separate questions.

True, with the qualification that this is a self-selected group. The people for whom it did not work post less, and that shapes everything we think we know.

That is the short version; the long version is somebody else's post.

lori_vegas said:

International shipping tracking for cross-border ordering orders: my experience with customs in the US when ordering from overseas: Held at customs…

Thank you for spelling out the reasoning rather than just the conclusion. I will report back once I have actually tried it.

pete_nash said:

The mechanism and the magnitude are separate questions.

I read this differently from pete_nash, on substance rather than tone. The objection nobody has made: this only works if the measurement is doing what we assume it is doing, and that assumption has not been tested here.

One concrete data point for the thread. For anyone reading later: the numbers in this thread are worth checking against a primary source before you act on them, including mine. Half the figures circulating in this community trace back to a secondary summary that dropped a qualifier.

Happy to go further on any of that.

Moderator note: good thread. Keeping it here rather than moving it, because the question is general enough to be useful.