Impossible Foods Is on a Meat-Free Mission to Transform the Way We Eat

On an otherwise unadorned table at an event space overlooking Hong Kong's Victoria Harbour, glass bowls displayed the constituent parts of the Impossible Burger. One contained a B-vitamin-laced potato protein paste, another wheat protein, a third a globule of coconut oil. In a fourth, shimmering crimson under the ceiling lights, was the secret sauce: heme (or haem), a component of many proteins, including hemoglobin — the pigment that gives blood its color.