Don't put one on the cooking grate and preheat, because it will suck it up to the heating element and catch fire. Hint: Just clean and put one in, then put in the cooking grate.
I also found the paper liners to fit and I love them. Like, clean it and 1 hour later there is dust on it. What I don't like: Glass top attracts dust like nobody's business. IT GETS HOT and will crisp up and blacken chicken skin, salmon skin, pork belly skin like nobody's business. SO DAMN easy to clean-ridiculously easy to clean. I wanted a square shape because my older one is round and I definitely prefer this one.
Promising review: 'After tons of research and TikTok reviews, I bought this Cosori.