inky caps melt quickly into black goo after picked. you can eat fresh ones when they're white, and there's mention online of using the goo as calligraphy ink. seen a cool few examples including a letter, though I can't find details about how long it stays readable, but it's at least a year still black.
apparently the liquefaction process, besides looking cool as fuck, is meant to spread the spores. I wonder; if you write someone a letter in inky cap goo, can they bury it and get mushrooms? what if I do a big kanji with large fude, will it grow inky caps in the shape of the kanji
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