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withered_preacher
Aye, but my question is really about unused grounds. I've just smashed a load of old/undrinkable beans through the grinder to break the grinder in, but it seems really wasteful to bin them, but I also don't want to shag my plants with a potential contaminant.
I'm probably overthinking it, and will likely just add a load of boiling water to them and pour off the water to be sure.