Practice · Storage & stability

Storing in the door of the fridge is worse than you think

Practice › Storage & stability cold chain beyond-use date storage freeze-thaw cloudy or discoloured solution temperature excursion

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Solved by st.diallo in post #3

Freeze-thaw: some peptide solutions tolerate freezing poorly because ice crystals damage protein structure. Whether your specific solution tolerates it depends on the formulation and is not something to test empirically. The conservative position is not to freeze.

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j.asanteTL2 Moderator13 Sep 2025#1

Storing in the door of the fridge is worse than you think Writing it up because I had to work it out twice and would rather nobody else did.

A question about technique rather than about dose.

I have been doing the same thing for 3 months and it works, and then I read one of the documentation pages here and realised I may have been reasoning from a misunderstanding the whole time. Nothing has gone wrong; I would just like to understand why it has not.

What I do, exactly, is described below. Please tell me which parts are load-bearing and which are superstition.

1 like 10mo

KAnderssonTL3Regular12 Dec 2025#2

the opening post is right about the mechanism and I think understates the practical bit.

Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the kind that comes from remembering a figure instead of looking it up.

0 likes 8mo

st.dialloTL2 Moderator Solution14 Feb 2026#3

Freeze-thaw: some peptide solutions tolerate freezing poorly because ice crystals damage protein structure. Whether your specific solution tolerates it depends on the formulation and is not something to test empirically. The conservative position is not to freeze.

12 likes 5mo

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