Some Chains Are Cooking Impossible Burgers on the Same Grill as Meat | Eater
"One major fast-food chain has been reported to cook its plant-based sandwich on the same grills used for beef, meaning meat juices can contact the patty; the company argues that most customers who order the item are not vegetarian (claiming about 90 percent) and offers an oven-cooked alternative for those who object, but this practice has raised concerns for the roughly 10 percent of customers who are vegetarian or vegan and expect a truly meat-free product." - Tim Forster
