Just to draw this stupid unfunny jokes (which I'm sure people may not get it), I read things about wine and wine glasses.
But then on the taste description, I stumbled upon this chart that might be useful for writers to describe taste.
Hidden because I'm not really confident of this drawing anymore
See this guy's sword? As he is a surviving older character getting developed, some of the edgelord points of my preteen years are preserved in many aspects. His sword's blade are made of charcoal and blood from dead bodies. It supposed to have a property of carbon steel (get it?).
However, charcoal from animals (such as bone charcoal) are less pure in C than those from vegetable source. Bone char is at most 10% C, while the vegetable one is
can be in the range of 90%. I still need more research on how to improve the purity of carbon obtained from the scorched human bodies, or extract them, as I'm bad researching at such things. Or I just need to say it's 'magic' and go with it. Also he probably needs the blood of around 450–500 humans for that sword around.