How to fix the McDonald’s burger in the microwave

McDonald’s has become the toast of America, but is it any good?

Read moreThe restaurant chain announced a partnership with the U.S. Food and Drug Administration to create microwave-safe burgers in 2018, but the food giant said it could take longer than expected to develop the new burger-maker technology.

The new microwave-resistant burger, dubbed the “McDonald’s MRE” and named after the fast-food chain’s namesake, will be offered in more than 200 restaurants across the U, U.K. and Canada by 2020.

The partnership, first reported by the New York Times, has sparked controversy among critics who fear the microwave technology will harm the health of Americans.

The microwave-based hamburger will use an “in-line” heating system, in which the hot water inside the hamburger is heated to about 600 degrees Fahrenheit (350 degrees Celsius).

That creates a “hot spot” in the hamburgers’ outer shell, where heat can escape through cracks in the surface.

The FDA has also issued guidance on how to use the technology in microwave-free restaurants.