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c/coldchain·submitted 9 months ago by u/cato_batista

small win: packaging stopped being a problem at week 66

Questionbranch of 13 comments

Quick one. Canada here. packaging works very differently where I live than in the threads that dominate the front page, and I keep seeing people confidently given advice that simply does not apply outside the US. Specifics: the route I used took 15 weeks and cost roughly what I expected. The admin was worse than the…

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13 comments, started 9 months ago
u/runa_wikstrom166 points·9 months ago

Half-life is about 168 hours, so steady state lands around week 7–5. Practical consequence: what you feel in week 1 is not what that dose does.

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[removed]123 points·9 months ago

[removed by moderator]

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u/marit_laurent78 points·9 months ago

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

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u/soren_yildiz44 points·9 months ago

stability after excursion is not zero, it is dose-dependent

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u/cato_batistaOP32 points·9 months ago

That is net peptide content, not purity. Different number, different meaning.

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u/nayeli_iyer36 points·9 months ago

Not convinced. The evidence does not support that reading.

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u/cato_batista13 points·9 months ago

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

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u/iman_castellanos61 points·9 months ago

data logger is the standard, gut feeling is not

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u/coldchain_karencold chain41 points·9 months ago

gel packs last 2 hours, after that you are relying on the box itself

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u/prior_auth_painappeals31 points·9 months ago

No. This is the kind of confident post that gets copied into a screenshot and repeated for years. Where is the evidence.

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u/coldchain_karencold chain65 points·9 months ago

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

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u/usb_logger_ursulaMOD68 points·9 months ago

Retitled to remove editorialising. Put the evidence in the body.

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u/nadia_kjaer23 points·9 months ago

time-at-temperature integral is the dose, not just peak temperature

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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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