the hashtag “white paper exercise” was blocked on Weibo, prompting users to lament the censorship. “If you fear a blank sheet of paper, you are weak inside,” one Weibo user posted.

The claim. One sheet of this biodegradable paper "keeps fruits and veggies fresh 2-4x longer, naturally! It's like a dryer sheet for produce!" The paper's maker, Fenugreen, suggests that the ...