Fermentation may seem to some like a newer food trend but actually, many of the things we have been eating for ages involve fermentation - just think of cocoa, coffee and bread, or beer and wine. The list goes on. So why the buzz now? Fermented foods are widespread worldwide and are considered healthy for the gut and health, according to Germany's Federal Centre for Nutrition (BZfE). These days, it is easy to ferment vegetables yourself. By following a specific fermentation process, your food ca