From: Persephone O'Donnell << As for fermented cream, it sounds interesting but I haven't heard of it. Is it anything like sour cream?>>
Persephone,
Check out -- crème fraîche --... it is a cultured cream but traditionally has 40% fat...
Sour cream normally has only 18% fat and might be a different culture judging by the taste of the organic, so called 'healthy crème fraîche', available in UK supermarkets which contains only 18% fat.
Dedy