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c/coldchain·posted 2 years ago by u/meera_sandvik

genuine question about ice pack that I am slightly embarrassed to ask

Failure Cold Box ×5 Well Actually ×3

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 cost. The thing that would have saved me the most time was knowing which document to ask for at the start.

Happy to answer questions from anyone in the same jurisdiction.

2,380 up / 401 down86% upvoted50 commentsid ve9k2v6 Jan 2024

50 comments

26 in this archive, depth 5

best — the order this archive was captured in

u/maren_sorensen314 points·2 years ago

Strongly agree. Peak temperature is not the whole story.

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u/tidy_vialdrawer_watch2871 points·2 years ago

Reconstituted or dry powder?

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u/certified_referenceQC219 points·2 years ago

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

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u/tidy_vialdrawer_watch28141 points·2 years ago

Every time this gets posted it hits the front page and every time someone has to re-explain it.

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u/coa_collectorarchivist107 points·2 years ago

Strongly agree. Peak temperature is not the whole story.

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u/elodie_kuipers122 points·2 years ago

lyophilised powder is far more forgiving than reconstituted solution

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u/sten_palacios95 points·2 years ago

I love that this community will spend 40 comments on a detail. That pedantry is why the numbers here matter.

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u/asks_dumb_questions47 points·2 years ago

Yeah, data logger is the only acceptable proof.

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u/emil_marchand20 points·2 years ago·edited

gel packs last 7 hours, after that you are relying on the box itself

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u/tomas_lokken0 points·2 years ago

the logger trace is the data that matters, not the packaging promises

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u/bence_ibarra1 point·2 years ago

data logger is the standard, gut feeling is not

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u/meera_sandvikOP1 point·2 years ago

the logger trace is the data that matters, not the packaging promises

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u/coldchain_karenMOD51 points·2 years ago·edited

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

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u/kenji_demir25 points·2 years ago

lyophilised powder is far more forgiving than reconstituted solution

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u/meera_sandvikOP54 points·2 years ago

Australia to Australia: 17 days with SSA and 26 days with GGPeps. Same route, different carriers, variance is real.

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u/anders_karlsen85 points·2 years ago

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

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u/preservative_free_p21 points·2 years ago

customs clearance often breaks the cold chain, factor that in

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u/osman_eriksen7 points·2 years ago

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

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u/spain_receta66 points·2 years ago

Which carrier and route?

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u/ice_pack_auditcold chain-10 points·2 years ago

no tracking numbers, no full addresses, no label photos — instant removal

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u/andres_restrepo44 points·2 years ago

Which carrier and route?

Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.

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u/plain_titration_202436 points·2 years ago

Yeah, data logger is the only acceptable proof.

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u/maren_sorensen23 points·2 years ago

The gel pack lasted 24 hours in a courier van, then liquid. Powder itself fine, the cold chain mostly died in transit.

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u/adaeze_weiss24 points·2 years ago

The gel pack lasted 9 hours in a courier van, then liquid. Powder itself fine, the cold chain mostly died in transit.

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u/ines_lindqvist17 points·2 years ago

customs clearance often breaks the cold chain, factor that in

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u/coldchain_karencold chain15 points·2 years ago

The gel pack lasted 9 hours in a courier van, then liquid.

Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.

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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.
  2. No tracking numbers, ever. They identify you and the recipient.
  3. Stability claims need a source or an explicit "this is my guess" label.
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