“Sewage mud” is exactly what you think it is – poop. Ikeda’s process begins by extracting protein and lipids from the “mud.” The lipids are then combined with a reaction enhancer, then whipped into “meat” in an exploder. Ikeda then makes the poop more savory, by adding soya and steak sauce.
Currently, the price of the poop burgers are 10-20 times that of regular meat, due to the cost of research, but he feels they will even out in a few years. He admits that “some people” may have a psychological aversion to eating artificial meat made of their own poop at first, but thinks many would be open to personally completing the food chain.