Laura, are you looking to clean the actual pot?
I know the pot from my Brazen got real nasty looking.
I used a solution of
Cafiza and water, let it soak and the carafe looked good as new.
I don't know if it's safe for glass, but this is the same stuff I soak my portafilters in, and it makes them sparkle as well.
For cleaning the guts of the pot, the simple vinegar and water solution will work, or you can grab yourself some descaler .