Curing and smoking your own food is a bit of a lost art in Britain these days. While our European neighbours have continued to use these methods on their meat, fish and cheese for centuries, we seem to have lost the habit. But with the right guidance, anyone can preserve fresh produce, whether living on a country farm or in an urban flat - it doesn't have to take up a huge amount of space. The River Cottage ethos is all about knowing the whole story...