Hi.

Just been shaving for some months with the straight. I love it, but there´s this issue that got me thinking.
When I finish I take a look at the razor, and there it is: some kind of dirt (maybe grease from the skin?), and it´s difficult to get rid of. I go over the strop but it remains there, so I end up wiping it out with a tisue and LOTS of caution so that I don´t damage the edge.
What´s this, guys? How do you get rid of it? Maybe someone asked about this before, but I don´t know how it´s called so the search function wasn´t helpful.
I have a couple of photos for you to see what I´m referring to. Here, have a look: