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c/coldchain·submitted 5 months ago by u/transit_variance

Spain: cold chain, and what it actually costs here

PSAbranch of 8 comments

Spain: cold chain, and what it actually costs here. I have gone back and forth on this for months. 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 the vial. Lyophilisation removes the water that drives…

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8 comments, started 5 months ago
u/marta_ilunga70 points·5 months ago

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

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u/runa_wikstrom39 points·5 months ago

Agreed.

marta_ilunga is right that the pack failing is not the material failing. Two separate claims.

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u/priya_ogunleye23 points·5 months ago

transit temperature is a distribution, not a number

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u/low_appetite_lisa23 points·5 months ago

Cosigning the regional stock point. Ordering from a warehouse in Poland took the whole question off my table.

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u/mod_cold_roommod · c/coldchain16 points·5 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/soren_yildiz4 points·5 months ago

insulation buys hours, not days

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u/jarno_adeyemi10 points·5 months ago

Cosigning the regional stock point.

This is the distinction that resolves most threads here — powder and solution are different problems.

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u/anjali_tamm3 points·5 months ago

A transit temperature logger records a distribution, and time above a threshold matters as much as peak temperature. That is the argument for logging rather than guessing.

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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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