White Stuff on Keys?

[dreamlife789]

I know what you're thinking, and no, it is not that. There is white stuff on the edges of certain keys on my Macbook Pro that appear at random. It is like white and slightly hairy like dust. My best guess is that it is dust floating in the air mixing with the sweat from my fingers on the keyboard and sticking there. It appears on the edges and inward from the tops of keys. I can't describe it other than that it's white stuff. What is it?

 

[appleguy123]

I can't really understand what you mean by your description. Maybe a picture would help. Are there smokers in your house?

 

[Patrick J]

Do you clean your keyboard with paper tissues, or kitchen roll? When I use kitchen roll in combination with alcohol and scrub the keyboard, the paper inevitably breaks down, and after a few passes starts leaving white residue on the keys.