BEIJING (AP) — Shanghai grad student Wu Heng hadn’t planned to become a food activist but he couldn’t stop himself after reading a news story about cooks slathering pork in chemicals to make it look and smell like costlier cuts of beef.

“I never knew you could make fake beef!” said Wu, who described being shocked and disgusted by the revelation. “I suddenly felt I needed to do something, to create a platform so consumers could know about this kind of thing.”