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c/coldchain·submitted 3 months ago by u/search_before_post

[Discussion] can we stop arguing about lyophilised until somebody posts a number

Discussionbranch of 8 comments

can we stop arguing about lyophilised until somebody posts a number, and I want the answer with the reasoning attached rather than just the conclusion. Gel packs are designed for a duty cycle. A liquid pack at the end of a longer-than-expected transit is a pack behaving as specified, not evidence of an excursion in…

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8 comments, started 3 months ago
u/gustav_vermeulen14 points·3 months ago

Agreed. The dry powder is the robust state; it is the solution that needs the care.

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u/ms_fragmenter7 points·3 months ago

Right, and asking what the stability statement was written against is one line of email that reframes everything.

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u/emil_marchand6 points·3 months ago

Careful. "The cold chain failed" is a strong claim and the evidence you have is a warm box.

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u/nikhil_asante5 points·3 months ago

Yes — reconstitution date on the vial. It is the number you will want and cannot reconstruct.

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u/search_before_postOP2 points·3 months ago

Powder or already in solution?

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u/elodie_kuipers1 point·3 months ago

a summer lane and a winter lane are different lanes

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u/anders_karlsen1 point·3 months ago

Correction: that stability figure covers the lyophilised powder, not the reconstituted solution. Different claim entirely.

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u/brigade_detector1 point·3 months ago

lyophilised powder is far more forgiving than the panic threads suggest

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