Instruct: Classify Amazon reviews into positive or negative sentiment
Query: rusted on first wash!

The pans are crappy so I used my own.I read the reviews and knew not to use it as instructed and pour in vanilla and chocolate batter into the same pan.I made a vanilla cake and a chocolate cake and then used the insert to cut the rings out and then restacked them together. That worked well enough.But then when I ran the "dishwasher safe" insert through my dishwasher it came out completely COVERED in rust. I had to scrub at it for over an hour with steel wool to get all of the rust off.Not worth it at all. Just cut your own rings and do it yourself.