Hi Joel and Ayesha You have to be careful with drums – the hide can split given the differences between materials – the hide head and whatever material the body is made of. You should be ok if you do the standard double wrapping of plastic to reduce fluctuating RH. You can also add some sorbent material (tissue, cotton etc?) to help with this. Also – never put it through a double freeze – it is better to put it through a single freeze for longer. (2 freezes are not recommended for most if any materials).
Good luck! Gretchen Gretchen Anderson Conservator Carnegie Museum of Natural History (Preferred pronouns: she/her) anders...@carnegiemnh.org<mailto:anders...@carnegiemnh.org> Mobile: 412-420-9083 From: pestlist@googlegroups.com <pestlist@googlegroups.com> On Behalf Of Ayesha Fuentes Sent: Monday, June 27, 2022 9:00 AM To: pestlist@googlegroups.com Subject: * [PestList] Re: Low Temp Treatments for Drums Hello, I’m helping with a storage move to a new facility and we have been freezing many drums and other skins and hides under tension (-40 C, 72/24). So far, I haven’t seen any harm done to the objects. I haven’t been repeating any freezing cycles though. Will be curious to see what others say as I was recently asking conservation colleagues about this and it was similarly inconclusive. Best, a. -- Dr Ayesha Fuentes Isaac Newton Trust Research Associate in Conservation Museum of Archaeology and Anthropology University of Cambridge From: pestlist@googlegroups.com<mailto:pestlist@googlegroups.com> <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> on behalf of Voron, Joel <jvo...@cwf.org<mailto:jvo...@cwf.org>> Date: Monday, 27 June 2022 at 13:49 To: Museumpests <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> Subject: [PestList] Low Temp Treatments for Drums Repro Drum to Be Played All we are moving a drum from one building to another and are on the fence about 72/24 cold treatment at -32. I looked in The Care of Historic Musical Instruments and there is no real guidance either way. Have any of you done a cold treatment on drums before and what was your takeaway/outcome? Joel Voron Colonial Williamsburg Foundation Conservation Dept. 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