[Skunkworks] Plant oil cooking stove

Hello skunks, this may not be your everyday discussion, nonetheless, this still is the most likely group i would think of asking. I deliberately refuse to OFFTOPIC it. Here is the challenge, adapt or develop a cooking stove that uses plant oil. Castor, coconut, elianto, etc. Im thinking if volumes are worked up due to this, you would only need to buy one oil, for the stove and the pan. Anyway, the challenge is the physical characteristics of viscousity, and the carbon deposits after running an hour. There is one done by siemens called the 'protos' just that the stove is in two pieces and still cost is a problem. Any willing creative thinkers?