[Rastonbury]

I'm reminded of how blacksmiths use instant coffee to stain damascus steel, at least the ones on YouTube

[peacebeard]

Does that last long? Commercial damascus is typically acid etched which seems like it would last better, but it wears off eventually too.

[edit] oh, I guess coffee is acidic, so maybe it’s not that different. I was thinking of using it as a stain at first