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c/coldchain·submitted 10 days ago by u/marit_laurent

[PSA] never the fridge door. the door is the warmest wobbliest shelf you own

PSAbranch of 5 comments

Been lurking in c/coa for about 15 months and finally have something worth posting. Short version: week 75, 1.7mg, and cold chain is the bit I still cannot get a straight answer on. I have read the wiki, I have read the last 21 threads, and the answers split roughly down the middle. What I actually want to know is…

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5 comments, started 9 days ago
u/iman_castellanos65 points·9 days ago

excursion claims need a logger trace or a photo at unboxing, not "it felt warm"

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u/jarno_adeyemi16 points·9 days ago

lyophilised powder is far more forgiving than reconstituted solution

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u/chidi_yilmaz18 points·9 days ago

lyophilised powder is far more forgiving than reconstituted solution

Disagree on that part. 93.7% and 99.3% on the same vial is normal.

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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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  1. Excursion claims need a logger trace or a photo taken at unboxing. "It felt warm" is not data.
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  3. Stability claims need a source or an explicit "this is my guess" label.
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