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

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

Discussionbranch of 7 comments

Slightly embarrassed to be asking this, but: can we stop arguing about data logger until somebody posts a number. A stability statement is only meaningful with its conditions attached: temperature, duration, light exposure, and whether it covers powder or solution. Ask which. Regional stock changes the question…

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7 comments, started 3 months ago
u/tidy_vialdrawer_watch28120 points·3 months ago

Same. Door shelf is the worst place in the fridge and it is where everybody puts them.

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u/appeal_letter_al96 points·3 months ago

Same.

Adding the practical version: ask which lines are held regionally before you order in July.

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u/chidi_yilmaz37 points·3 months ago

Small fix — refrigerated, not frozen, once it is in solution.

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u/priya_ogunleye18 points·3 months ago

Small fix — refrigerated, not frozen, once it is in solution.

Agreed, and a logger costs less than the vial you are worrying about.

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u/sterile_field_steph9 points·3 months ago

Was there a logger in the box?

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u/gustav_vermeulen53 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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[removed]35 points·3 months ago

[removed by moderator]

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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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  1. Excursion claims need a logger trace or a photo taken at unboxing. "It felt warm" is not data.
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