Coffee’s Natural Creamer
6:03 minutes
Coffee beans are filled with oils that emerge from coffee grounds under high pressure. These oils form the crema—the frothy stuff on top of an espresso. In the last installment of Science Friday’s series on coffee, food-science writer Harold McGee, author of On Food and Cooking, explains the chemistry of crema.
Segment Guests
Flora Lichtman
Flora Lichtman is a host of Science Friday. In a previous life, she lived on a research ship where apertivi were served on the top deck, hoisted there via pulley by the ship’s chef.
Meet the Producer
About Flora Lichtman
Flora Lichtman is a host of Science Friday. In a previous life, she lived on a research ship where apertivi were served on the top deck, hoisted there via pulley by the ship’s chef.