Sounds like your tissue is overdehydrated or
overprocessed.  Try reducing the time in alcohols and
maybe even in paraffin.  Reducing alcohol times seems
to alleviate over 90% of the "too dry and crunchy"
problems we see.

Roger Moretz

--- mesruh turkekul  wrote:

> Dear Histoneters,
> 
> I have tried manual paraffin embedding and embedding
> of spleen in the
> tissue processor.
> But I have noticed it is not easy to section. The
> tissue is so dry and
> crunchy. I really need to blow hard onto the block
> while sectioning to
> get nice sections. Do you have any tips in terms of
> sectioning. Or
> maybe fixation, processing?
> 
> 
> Cheers,
> Mesruh Turkekul
> 
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