Grandma ruined baby bottles

She wanted my son to stay a couple nights so he went and I told her they had to be washed by hand multiple times! (The bottles and sippy cup) and they have came back stained orange! It looks disgusting I asked her what happened (I already knew what she did tho) and she told me she wash them in the dishwasher she just didn't have time to wash them by hand so now I have 6 ruined bottles and a sippy cup

Does anyone know how to fix this??

Even if they don't effect use it still looks bad on me when I'm out in public feeding my son with what looks like dirty bottles probably going to have to bin them and buy new ones 😠