Well I'm not sure. Refining is over 90% and so is extraction by the looks, but combined and add transport and yeah maybe it's more like 80%, in any case it's ar

Well I'm not sure. Refining is over 90% and so is extraction by the looks, but combined and add transport and yeah maybe it's more like 80%, in any case it's around an order of magnitude more efficient than western food production isn't it?