The practical version of Temperature indicator cards is three sentences long. The rigorous version is three pages and reaches the same conclusion with the conditions attached.
29 likes 2mo
Topic summary
[2026 update] Temperature indicator cards: worth asking for?
This is a generated summary. It shows the 5 most-liked posts from a topic of 27, in their original order, with the accepted answer included where one exists. It is a reading aid and it will miss nuance — the full topic is the record.
v.milanovi, post #5: Useful. I have added it to my own notes with the date on it. Go to post
Where I would push back on the Temperature indicator cards consensus is the confidence, not the direction. The direction looks right. The confidence is borrowed.
n.bridgewater, post #7: Temperature indicator cards is worth one more sentence than it usually gets, and the sentence is the one about how the number was arrived at. Go to post
Where a supplier reships after a documented failure without argument, that is commercially costly and worth recording alongside everything else.
That is the honest state of it as of this week.
mira.patel, post #13: Peak periods and public holidays affect this more than any other factor and are entirely predictable in advance. The general answer and the answer for your case may diverge here. Go to post
Answering the question post #16 raises rather than the one it answers.
Anyone deciding whether a delay is a problem should ask what would change if they waited another week. Usually the answer is nothing.
Old habit: I write down the expected answer before I calculate it.
Delivery to an address where somebody is present is worth more for cold-chain material than any packing decision available to the supplier.
I would put the burden of proof on the interesting explanation, not the dull one.
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