[Histonet] contaminants in tissue processor

From:Kim O'Sullivan

Hi everyone,

We have a very old citadel tissue processor that we use to process mouse kidney,liver and joints. We have found recently white blooms (best description I can think of- looks like cotton wool) in the first pot of histosol after the last alcohol- does anyone know what these could be and how to prevent them?

Secondly since we have changed from using xylene to  histosol we seem to be getting a toffee like substance on the bottom of the wax pots-is there any way we can prevent this?

Any suggestions would be helpful


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