In article , Primrose wrote:

Well that is a mystery to me, you want Heston Blumenthal on your case,
he loves a challenge.;-)

I read somewhere that hard water can cause beans to be a bit tough but I
can't really believe that as I've cooked beans for years and I live in a
hard water area!

It's specifically Borlotti and, I believe, mainly ones of older than
a year. I shall be testing that in due course. My water isn't
more than mildly hard.


Regards,
Nick Maclaren.