Hi Rachel, I've just finished doing my own research for a chest freezer for a natural history collection. I recommend the attached paper to get an idea of the temperatures needed and the length of time you need to leave items in the freezer at each temperature (I have Fig 1 taped up by my desk). Strang also has some suggestions for freezers to look for to make them a bit more affordable, like commercial "ice cream hardening" freezers.
The trouble I encountered was finding a commercial chest freezer that gets as cold as I want (reliably) at the price I want. My freezer budget was higher than yours so I ended up going with a So-Lo freezer (this one https://www.so-low.com/lab-chest-freezer/lab-chest-40-freezers/CH40-15-Lab-Chest-Freezer, quoted at $4,195). It's cheaper than the "scientific" ultra-cold freezers that are also ultra-expensive but can get down to -40, which is what I wanted. We're buying it to replace an Amana Deepfreeze chest freezer we've had for 15+ years that just isn't cutting it anymore in size and temperature (https://www.amana.com/kitchen/refrigeration/freezers.html), but could get as cold as -20 C. Good luck! Margaret Oliver, M.S. Herbarium Collections Manager (she / her) The University of Tennessee, Knoxville University of Tennessee Herbarium (TENN) 114 Temple Hall 1818 Andy Holt Ave. Knoxville, TN 37996-2800 [email protected]<mailto:[email protected]> 865-974-6213 http://herbarium.utk.edu Facebook<https://www.facebook.com/UTKHerbarium/> | Instagram<https://www.instagram.com/utkherbarium/> | Twitter<https://twitter.com/UTKHerbarium> Big Orange. Big Ideas. ________________________________ From: [email protected] <[email protected]> on behalf of Minor, Rachel <[email protected]> Sent: Tuesday, October 20, 2020 2:54 PM To: [email protected] <[email protected]> Subject: [PestList] Purchasing a chest freezer for Integrated Pest Management [External Email] Hello, I am interested in purchasing a chest freezer for the museum where I work. I have seen some conflicting articles on the desired temperature. Some places say that it should be capable of reaching -20 to -40 degrees Celsius, where others say -20 to -40 degrees Fahrenheit. Which is it, and can anyone recommend a good brand sold in the U.S. that is in the $2,500.00 or less range? Any other advice sincerely appreciated. The spot where we are going to put it is about 60” wide. Thank you, Rachel Minor Museum Supervisor/Curator Jesse Peter Multicultural Museum Santa Rosa Junior College 1501 Mendocino Avenue Santa Rosa, CA 95401 (707) 524-1862 https://museum.santarosa.edu/ [email size museum logo] -- You received this message because you are subscribed to the Google Groups "MuseumPests" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]<mailto:[email protected]>. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/BY5PR04MB6392E79ECBFAD6876EAD87EFC31F0%40BY5PR04MB6392.namprd04.prod.outlook.com<https://groups.google.com/d/msgid/pestlist/BY5PR04MB6392E79ECBFAD6876EAD87EFC31F0%40BY5PR04MB6392.namprd04.prod.outlook.com?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "MuseumPests" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/BL0PR02MB49160C986718C48FCB6148EFD71F0%40BL0PR02MB4916.namprd02.prod.outlook.com.
Strang_IPM_freezers.pdf
Description: Strang_IPM_freezers.pdf
