"Bruce" > wrote in message
...
> We've been having a lot of black turtle beans lately. I mean Mexican,
> tex-mex, southern American style black beans. I boil a kilo at a time
> and freeze part. All good. Except they stain the pot really badly with
> a dark film. Is there a good way to avoid the discoloration or to get
> rid of it afterwards? Thanks.

What kind of pot? I've never had that happen.