Originally Posted by The Dentist
Ah I see, so basically don't wash expensive Japanese Jeans because they fade easily but wash regular jeans like Levis, APC etc... Right? I know dryers damage clothing which is why I don't even own one but I didn't think the washer could be harmful to clothing.
No APC's are raw, actually, so you probably don't want to wash them. You can wash some expensive denim, such as pre-washed/faded diors and such (though you need to account for the fact that there will be some shrinkage and possibly more fade-age). Hell you can wash raws, if you want to. However, it completely defeats the purpose. But any denim you get at the mall, more or less, is something you can toss in the wash/made to be tossed in the wash for the most part. Also, a lot of denim that is raw/rigid will a) say so on the documentation and b) not that they bleed indigo dye heavily (and usually will say something about them not needing to be washed for fadings sake).
As an aside, not washing your denim actually doesn't make it much nastier than regularly washed denim. There was a great video debunking the idea that a) freezing jawns makes them cleaner and b) regularly washed jawns are way more clean than well-worn raws. The bacteria in both the unwashed/lived in raw and the washed jeans had pretty much the same amount/types of bacteria in them.
As for washers damaging jeans, not really, as long as you go cold and gentle anyway.