CHICAGO—Following years of reformulating at McDonald’s, most of the burgers it serves in the U.S. are now preservative-free.
As of Wednesday, the world’s largest burger chain says classics like the Big Mac and Quarter Pounder with Cheese are preservative-free, with reformulated buns and sauces. Pickles on the sandwiches still contain artificial preservatives, but customers can request sandwiches without pickles.
