What Causes the ‘Smell’ of a Burned Toast?

Burned toast smells because it makes new smelly chemicals. When you burn toast, the heat causes tiny changes in the bread. These changes make new smells that pop into your nose and say, 'Hey, I remember this!' It's like when you cook something too much, it goes from delicious to smoky.

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Examples

  1. Burned toast smells like your grandmother’s kitchen after she forgot to watch it.
  2. If you leave the toaster on too long, the smell fills up the whole house like a memory.
  3. Your favorite breakfast just turned into a science experiment.

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Categories: Science · chemistry· smell· toaster