lemon, ice, salt...
will remove coffee stains from the inside of pyrex pots, glass or china.
g

IF you get right after it.   We haven't had any trouble keeping our Cona 
pot clear because we don't let coffee sit in it.   The Oxyclean really 
brought them all the way back to totally white with no trace of the 
stains.  
John - wandering in circles - I mean - Texas
espresso gin wrote:
<Snip>

actually no John,
my brother is a slob, his coffee pot (what he uses to make what he calls
coffee, is black every time I go to California and peek into the
guesthouse...
so I  1/2 fill the pot with crushed ice, use three or four lemons squeezed
in and had tons of morton salt, using the handle of the pot keep on shaking
around and it goes away. I need to replace all at least once with his pot
but it always takes it away. Actually I am sure it's the salt/ice as a
pumice scraping the coffee stuff away with the acid from the lemon.
ginny