By America’s Test Kitchen
Shrimp is the most popular seafood in the United States. These slightly sweet, mild-flavored crustaceans are full of interesting science. Take a deep dive into these shrimp-ly fascinating facts. They change color when they cook.
Most raw shrimp are a gray-black color. But when you cook them, they turn pink! Why the color change? Shrimp contain a pigment called astaxanthin that is released when the shrimp reach about 120 degrees.
Bonus fishy fact: Salmon have pink flesh because they eat shrimp and krill,