Chapter 421: Holding the government and media hostage

What could the remaining foodstuff be used for?

Lu Zhixin looked puzzledly at Xu Tingsheng, venturing hesitantly, “Feeding pigs? Or maybe just pour it away?”

“It also has another use. Some people collect the swill and the oil slick from the grease traps in the drainage systems and boil them in a huge pan. And so, they are able to refine and produce new oil…”

Xu Tingsheng basically narrated the process of how gutter oil was refined.

Lu Zhixin’s brows were tightly furrowed as she asked, “What would such dirty oil be used for?”

“After a bit of work, it can be sold to some small eateries or restaurants…” Xu Tingsheng said.

“...To cook food?” Lu Zhixin’s stomach began to churn as she stared at the dishes in front of her.

Xu Tingsheng nodded comp...