You learn the oddest things along the way. Apparently the real reason why pork belly is so expensive these days is not because chefs have suddenly taken such a liking to it (although it is cropping up all over the shop as the cheap cut of choice). Nor is it because they’re all being exported to China, although I believe a certain amount are, for the Chinese love belly pork even more than I do. No, it is because they are being rendered down to be used as bio-fuel. I’ve always had a suspicion that there was something dodgy about the whole concept of bio-fuel. Soon we will all be cruising around in cars powered by pig fat. Personally, I’d rather have the pig’s bellies to eat, and travel by bicycle. Short distances, anyway.