I got myself a nice present, in aogami super steel, which is a carbon steel. I wondered how (fast) a patina would develop, as I couldn't find much about it online, except the vague "a patina will show after time". So I figured maybe people here would like to know.
Well, after a week of almost daily use with mostly veggies, the patina started to show. The first signs already after a few days, possibly after quite some tomatoes, which apparently have some acidic value.
The cladding is stainless, so only the cutting edge went from the mirror finish to the oily mattish patina. Hope it shows well enough in the pictures. The green reflection is some football match on the tellie.