comment: >
context: Today I learned that PBT is not dishwasher safe in EVERY case ... Used the dishwasher to clean my keycaps lots of times without problems, but this time it took the black color with it. My assumption is that it has to do with other things that were in the dishwasher at the same time, there was a lot of residue of freshly juiced lemons in there with it. Don't make my mistake! >
  
  I put my eyeglasses in a dishwasher once, thinking what a genius idea to give them a deep clean, and the heat made the acetate frames pliable enough to deform. I feel your pain! >
  
  Oh damn, that's an expensive mistake >.< sorry dude, but at least we learned something >
  
  “Haha! But I have metal frames!”
  Nope. I wouldn’t bet on the anti reflective coating to live through that detergent. >
  
  Why an earth would you use a dishwasher to clean your keys >
  
  Honestly? Because I'm lazy and it always worked like a charm ... until now at least :P >
  
  Well, at least now OP know >
  
  You bet :P