Originally Posted by taxlady
Is regular Marmite bitter too?
yes, but only in the way that too much yeast makes bread bitter. There's no actual Guinness in it. The advertising company with teh Marmite account was just getting on the bandwagon with a labelling gimic.
Marmite, as I've said, is made from the yeast waste produced in the Guinness manufacturing process and has no Guinness in it