At our site, we clean them every time we cut a suspected "contaminated
specimen" (i.e.. TB) on them which is sometimes weekly as we can do
sometimes 20 - 25 frozens a day.  If one of our cryostats somehow misses
being contaminated, it is cleaned once a month regardless.  I believe they
use the leica cryofect spray.

Also, we have our cryostats set to defrost every night to keep them clean.

Hope this helps!

Kathy

-----Original Message-----
From: Bruce Gapinski [mailto:BGapinski@pathgroup.com]
Sent: Wednesday, July 10, 2002 9:49 AM
To: 'histonet@pathology.swmed.edu'
Subject: cryostat cleaning


How often do you clean you cryostat? I've got a safety inspector breathing
down my neck. We do it every two months. Thanks Bruce Gapinski HT(ASCP)