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c/coldchain·posted 1 year ago by u/kofi_ferreira

the ice pack thing finally clicked for me and I want to write it down

Data Well Actually ×1 Slow Clap ×2 Cold Box ×3

the ice pack thing finally clicked for me and I want to write it down. It is the sort of thing everyone half-believes and nobody writes down.

Put a logger in three consecutive orders. Two never went above the range at all and the third spent four hours warm on a Friday. Cost me almost nothing to stop wondering.

Gel pack fully liquid on arrival, powder tested 99.5% against a claimed 99.0% afterwards. The pack had done its job for as long as it was designed to.

Moved everything off the fridge door after reading a thread here and my temperature log immediately got boring.

If two or three other people have done the same thing we might actually learn something. Alone it is an anecdote.

4,187 up / 436 down91% upvoted13 commentsid qn3r365 Oct 2024

13 comments

4 in this archive, depth 3

best — the order this archive was captured in

u/usb_logger_ursulaMOD598 points·1 year ago

Tracking number redacted. It identifies both ends of a shipment and that rule has no exceptions.

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u/amara_dziedzic364 points·1 year ago

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.

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u/dario_bakken174 points·1 year ago

Agreed on seasonality. The same lane in February and August is not the same lane.

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u/ireland_drugs_pay143 points·1 year ago

Disagree with the panic framing. Lyophilised material tolerates ordinary transit conditions far better than these threads imply.

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About c/coldchain

Temperature and stability in the real world: what an excursion actually costs you, why lyophilised powder is far more forgiving than reconstituted solution, how to read a logger CSV, and how to photograph a failed shipment so the conversation with the vendor is short.

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