During the case, Liebeck's attorneys discovered that McDonald's required franchises to serve coffee at 180–190 °F (82–88 °C). At that temperature, the coffee would cause a third-degree burn in two to seven seconds.
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Though defenders of the Liebeck verdict argue that her coffee was unusually hotter than other coffee sold, other major vendors of coffee, including Starbucks, Dunkin' Donuts, Wendy's, and Burger King, produce coffee at a similar or higher temperature, and have been subjected to similar lawsuits over third-degree burns.[18]
Home and commercial coffee makers often reach comparable temperatures.[19] The National Coffee Association of U.S.A. instructs that coffee should be brewed "between 195-205 degrees Fahrenheit [91–96 °C] for optimal extraction" and consumed "immediately". If not consumed immediately, the coffee is to be "maintained at 180-185 degrees Fahrenheit".