Even for the enthusiast, hot coffee that has cooled to room temperature is barely palatable. So, how do you keep it hot as long as possible? Other than buying an insulated thermos, there is a way you can fix your coffee at home to ensure a longer linger of heat to warm your fingers.
It sounds counter-intuitive, but immediately adding cold cream to your coffee actually helps keep it hotter for longer. The food scientists behind Modernist Cuisine have worked out why this is true with the laws of physics, but we’ll condense the scientific terminology for you. Cold cream works this small wonder on your daily cup of coffee for three reasons. Click through the slides to find out what they are.
It beats black coffee because…
Black coffee is a darker color than coffee with a splash of cream. You know that dark colors absorb heat faster than light colors, but they also emit heat faster than their lighter counterparts. This means your coworker’s coffee, which they ordered black, leaks its heat faster than your coffee with cream, which is a milky camel color.