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@TCellTracker
Hello scientist friends! If we set -80C freezers to -70C, it saves 30% energy & prolongs compressor life, w minimal sample issues. Consider chilling up!
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Sebastian Fica 21. stu
Odgovor korisniku/ci @tcelltracker @UMassMedGreen i 6 ostali
What’s the evidence for no effect on samples at -70 ? Have you for example tested what happens to cell extracts if they’re kept at -70 vs -80 for prolonged periods ? Stability of nucleic acids and virus particles at -70 means nothing compared to proteins in cellular extracts !
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@TCellTracker 21. stu
Odgovor korisniku/ci @Seb_Fica @UMassMedGreen i 6 ostali
Someone else had similar concerns but deleted his tweet and my reply. Here are some more resources for you to browse to help you decide if feasible for your lab: ; ;
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Julien Limenitakis 4. lis
Any idea if molecular stability is the same at -70c vs -80c? Was the choice of -80c arbitrary back when people started to use those freezers ? Although saving energy and money is appealing, degrading samples is not... worth a thought maybe ?
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Julien Limenitakis 4. lis
The reference to the scientific evidence backing the assumption that a shift to 70c has no effects on samples is just a website with a simple statement on the linked webpage...
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Dr. M Rosenbach 4. lis
Odgovor korisniku/ci @tcelltracker @UMassMedGreen i 5 ostali
This is great! Seems like the sort of win-win-win, low hanging fruit that everyone should be looking for- thx for tweeting!
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Michelle Kahlenberg 4. lis
Odgovor korisniku/ci @tcelltracker @UMassMedGreen i 5 ostali
I am all for being green… In fact my whole farm went solar this summer… But I worry that none of our freezers have a back up power system given our old buildings… So if I raise the temperature on our freezers and the power goes out I have less time until my samples go bad…
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Chris Incarvito 21. stu
Odgovor korisniku/ci @tcelltracker @UMassMedGreen i 6 ostali
There may not be a universal approach. -70 to conserve energy, -80 to eliminate variables in exp procedures, reg maintenance of the freezer, sample management, etc. All have opportunity for efficiency.
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Jacques Robert 4. lis
We do that.
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