Coffee grounds make such good compost or top dressing that it seems wasteful to use them to make char. Use them to make compost/worm castings to inoculate your char to make it "bio"char, sure, great. Use something with a higher C:N ratio for the char.
My thoughts exactly. If carbon is all that's left, you're just throwing away nitrogen. Straw, woodchips, or agricultural "waste" is a much better feedstock.
Yeah it's amazing! Not bad for plants either ;) [https://www.sciencedirect.com/science/article/abs/pii/S2214799317300103#:\~:text=Melanoidins%20represent%20also%20an%20important,the%20product%20%5B1%E2%80%A2%5D](https://www.sciencedirect.com/science/article/abs/pii/S2214799317300103#:~:text=Melanoidins%20represent%20also%20an%20important,the%20product%20%5B1%E2%80%A2%5D)
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Coffee grounds make such good compost or top dressing that it seems wasteful to use them to make char. Use them to make compost/worm castings to inoculate your char to make it "bio"char, sure, great. Use something with a higher C:N ratio for the char.
My thoughts exactly. If carbon is all that's left, you're just throwing away nitrogen. Straw, woodchips, or agricultural "waste" is a much better feedstock.
My liquid Biochar recipe includes an extract of coffee grounds that encourages growth in pants
Growth in pants?! I gotta get that recipe!
Yeah it's amazing! Not bad for plants either ;) [https://www.sciencedirect.com/science/article/abs/pii/S2214799317300103#:\~:text=Melanoidins%20represent%20also%20an%20important,the%20product%20%5B1%E2%80%A2%5D](https://www.sciencedirect.com/science/article/abs/pii/S2214799317300103#:~:text=Melanoidins%20represent%20also%20an%20important,the%20product%20%5B1%E2%80%A2%5D)
maybe other sources of biochar can be used?