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Topic summary

Domestic fridge temperature mapping: a cheap experiment — what changed since

This is a generated summary. It shows the 9 most-liked posts from a topic of 156, 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.
NH
n.hartmannTL2 Moderator10 Nov 2024 · edited#8

post #7 answers the question as asked. The question underneath it is different.

I disagree with the reply above, and I think the disagreement is substantive rather than terminological.

The distinction being drawn does not survive when you look at the published data for this specific question. I would be glad to be shown wrong on this, because the version I am arguing against is more convenient.

29 likes 21mo
GV
g.valckenaereTL3Regular17 Dec 2024#23
p.marchetti, post #16: Coming back to post #14, because the follow-up matters more than the original answer. Practical note that does not fit anywhere else. Whatever you conclude from this topic, write down what you did and when. The single most useful thing in your own records is not any individual result; it is that they are dated and consecutive. Go to post

Worth separating two things that post #19 runs together.

Temperature excursions: brief excursions above 8 °C are tolerable for most compounds. Hours to a day at room temperature is usually acceptable. Days to weeks at room temperature risks degradation.

30 likes in reply to #16 19mo
HB
h.bhattacharyaTL2 Moderator30 Jan 2025#44

Shipping container and cold packs: reputable suppliers use insulated containers with cold packs designed to arrive cool. Checking on arrival that cold packs are still cold is a sign the chain was maintained.

29 likes 18mo
VS
v.szaboTL3Analytical chemist15 Feb 2025#52

Coming back to post #50, because the follow-up matters more than the original answer.

Freeze-thaw: some peptides tolerate freezing; others do not. Check your compound's labelling. Generally, repeated freeze-thaw is worse than single freeze-thaw.

31 likes 17mo
AW
a.weissTL2 Moderator28 Feb 2025#59

Temperature logging: devices that record temperature over time let you confirm cold chain was maintained. Useful if a shipment was delayed or if you are concerned about excursion.

29 likes 17mo
DO
d.oyelaranTL3Pharmacist11 Mar 2025#65
st.diallo, post #24: post #23 is right about the mechanism and I think understates the practical bit. Light protection: avoid direct sunlight and UV exposure. Amber vials or opaque containers reduce light exposure. For short-term storage, keeping the vial in its original packaging (often opaque) usually suffices. Go to post

Travel with medication: carrying a vial across borders requires planning if temperatures will exceed the range or if journey time is long. Insulated travel cases with ice packs are common solutions.

31 likes in reply to #24 17mo
SK
s.karlsen_rphTL3Pharmacist6 May 2025#98

Shipment during summer or to hot climates: consider shipping to a cold-storage facility rather than to home if temperatures will be high. Alternatively, time shipment to arrive when you can refrigerate immediately.

29 likes 15mo
JN
j.nwosuTL2 Moderator22 Jun 2025#128

I read post #126 twice before replying, because I had assumed the opposite.

Assessing an excursion: if a package sat at room temperature for a time, visual inspection (cloudiness, discoloration, particles) can alert you to problems. Not visible does not mean not damaged, but visible problems are a reason to contact the supplier.

31 likes 13mo
M
MJayawardenaTL3Regular24 Jun 2025#129

Temperature excursions: brief excursions above 8 °C are tolerable for most compounds. Hours to a day at room temperature is usually acceptable. Days to weeks at room temperature risks degradation.

33 likes 13mo

Read the full topic (156 posts)

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