• Bendavisunlv6 ( Bendavisunlv6@lemmynsfw.com ) 
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    3 years ago

    A biochar of spent coffee grounds.

    Not coffee grounds.

    If you don’t know what biochar is, it’s high carbon material that’s left over after burning organic matter (think:wood) slowly under low-oxygen conditions.

    Biochar requires energy and emitting gases.

    It seems unfair to say that we’re saving on CO2 and methane from decomposition without also counting the cost of the biochar combustion.

    • anon6789 ( anon6789@beehaw.org ) 
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      3 years ago

      I wish they had a bit about that in the article itself, but they did link another article about biochar creation and its byproducts. I linked it in another comment here.

      I feel there’s a lot of assumptions here that no one actually reads articles.

      • norbert ( norbert@kbin.social ) 
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        3 years ago

        Most of us are from reddit and unfortunately that “jump to the comments to argue” mentality seems to have followed a lot of us.

        For example, I haven’t read the article. Just clicked into the comments to see what it was, found out it was coffee.

        I’ll go read it now.

        I’m back, the other linked USDA article about pyrolysis is fascinating. It’s not really clear on how much energy the process takes but they did mention it could (possibly) be self-sustaining. Really cool stuff!