The Bedtime Scientist

Episode guide

Taste: A Journey Down the River of Flavor

Dinner is chemistry you are allowed to enjoy. This episode rides a bite of food past the tongue's five little languages and onward, downstream.

The science, gently

  • Your tongue reads five tastes: sweet, salty, sour, bitter, and savory umami.
  • Most of what we call flavor is actually smell, arriving through the back door of the nose.
  • Taste buds are replaced all the time; your tongue is always renewing its readers.

Wonder together

  • Which of the five tastes is your favorite language?
  • What food tastes like your family?
  • Why do you think sweet means safe to a baby?

Tonight's calm-down

Remember the best single bite of today, slowly, the way you would re-read a good sentence. The body keeps such notes. File it under a good day, and close the kitchen.