Using Korean Natural Farming pig raising techniques from Master Han-Kyu Cho Blake Rymer of @TnMtnFarm has made multiple no smell pig pens. He uses these to breed mangalitsa duroc crosses producing incredibly beautiful and marbled meat on non-gmo feed. This is a very good way to raise pigs in confinement maximizing pork production while it still being a living system that is healthy for the pigs and the environment.