@comradecid,
the wprd russett means RED . SO, several of the varietals of Russett, on second plantings of saved seed potato, will show up as red skinned. I like the red skinned varietals because they are not mealy and they make good fryin slices.
Potatoes , in my mind, are still a waste because they use the same soil characteristics of tomatoes and peppers, (Higher scale veggies to my family). We can buy farmed potatoes really cheap and without the work. However, growing my own tomatoes and chilis is a real treat.
Potatoes , peppers, and tomatoes should not be grown in soil in which one of the same crops was grown in the prvious year. SO, unless you have a huge garden, growing tomatoes where you grew potatoes last year does increase the chance of your tomatoes coming down with a blight or rot which affects members of nightshade plants.
Be careful.