[X]Build Hydroponics. It's time to make your own food. Finally. (Cost: 1 metal. Produces 0.5 rations per day)
[X]Research Ork burning. You've figure out how to eat Orks, indirectly. Maybe you can feed them to your machines, indirectly. (You can make a generator that runs directly on Ork corpses. Significantly more efficient than using hydroponics+promethium refinery)
[X]Build a bio-reycler. Currently, you're constantly loosing viable biomass. That's just inefficient, and it means a lot of work for you. (Cost: 1 metal. You don't need to keep supplying ork corpses to the composter beyond an initial load)
[X]Research Ork burning. You've figure out how to eat Orks, indirectly. Maybe you can feed them to your machines, indirectly. (You can make a generator that runs directly on Ork corpses. Significantly more efficient than using hydroponics+promethium refinery)
[X]Build a bio-reycler. Currently, you're constantly loosing viable biomass. That's just inefficient, and it means a lot of work for you. (Cost: 1 metal. You don't need to keep supplying ork corpses to the composter beyond an initial load)