How to remove "stains" from a ceramic non-stick frying pan?
Being the budget fiends that we are, my boyfriend and I bought a Tasty brand ceramic non-stick frying pan from Walmart. It was great but after a few uses, I noticed faint dark splotches in the middle of it, like it was burnt. Then I noticed two small, brown lines on it after using it another time. No matter how hard I scrubbed, none of it will come off. Here's what it looks like for reference https://www.walmart.com/ip/Tasty-Ceramic-Titanium-Reinforced-Non-Stick-Fry-Pan-Red-12/505629337
How do I remove these? Is the ceramic starting to chip or something? Do we have to throw it out and buy a new, more expensive one?