We did this pretty routinely at OSU. Our protocol was in the –80 overnight, out and up to room temp, then back in again for another day or so. Once or twice the glass on the top of a drawer cracked, but you could probably prevent that by putting a piece
of cardboard on it to keep it from defrosting too quickly.
Just make sure that the drawers are well-sealed, and that they are back up to room temperature before you open them, to avoid condensation on the specimens.
Professor Andrew V. Z. Brower
Evolution and Ecology Group
Dept. of Biology, Box 60
Middle Tennessee State University
Murfreesboro, TN 37132
We are receiving some major donations, some of which have had some dermestid damage. We have regular freezers as well as an ultra-low freezer. Does anybody know of adverse effects of putting drawers of specimens in an ultra-low freezer before the drawer
is brought into museum?
-- Richard L. Brown
Mississippi Entomological Museum
Dept. Biochemistry, Molecular Biology,
Entomology & Plant Pathology
Box 9775 (100 Old Highway 12)
Mississippi State, MS 39762