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

[Meta] the excursion rule is doing its job and people should stop complaining

Question Cold Box ×2 Slow Clap ×3

Right, the stability question again, but with numbers this time.

I have 20 data points over 26 weeks. The pattern is consistent enough that I do not think it is chance, and boring enough that nobody is going to screenshot it, which is usually a good sign.

The thing I would flag for anyone new: the effect I am describing showed up at week 4, not week 53. People give up long before the interesting part.

Interested in whether this matches other people's logs or whether I am an outlier.

2,134 up / 272 down89% upvoted29 commentsid oz2zfd9 Apr 2025

29 comments

11 in this archive, depth 4

best — the order this archive was captured in

u/meera_sandvik221 points·1 year ago

The evidence standard in c/vendorvetting gets called too strict about once a month, and every time, the thread ends with the complainant agreeing.

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u/maren_sorensen75 points·1 year ago

Yeah, data logger is the only acceptable proof.

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u/ewan_tulloch232 points·1 year ago

Denmark to Denmark takes 7 days on average, variance is 30 days

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u/noor_cardoso157 points·1 year ago

This is correct. Dry powder is way more robust than liquid.

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u/gustav_vermeulen64 points·1 year ago

Peak temperature and how long at that temperature?

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u/chidi_yilmaz49 points·1 year ago

lane reports need origin, destination, carrier, and actual transit days

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u/emeka_delgado38 points·1 year ago

a warm courier van is a bigger problem for a mixed vial than for dry powder

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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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c/coldchain rules
  1. Excursion claims need a logger trace or a photo taken at unboxing. "It felt warm" is not data.
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