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I_am_Erk t1_iuxggha wrote

I suspect coffee was chosen because there are a lot of wasted coffee grounds. There likely isn't anything specifically about coffee that is needed here, you could probably use any number of similar substrates that are cheaper to grow


jamanimals t1_iuxgy27 wrote

Oh, I agree, but even corn for ethanol was only supposed to be using waste products and not corn grown for ethanol, but once you give the industry an inch to grab onto, they'll take all they can get.


I_am_Erk t1_iuxhknh wrote

Very true. The issue there isn't the tech, it's the economic system....