: why does the air smells like yeast from time to time ?

Question

It usually happens on rainy days and I’ve smelled it in different cities. It only smells when you’re outside. It’s quite rare though, maybe once or twice a year ?

In: 1

Answer 1

Are you perhaps referring to [petrichor](https://en.wikipedia.org/wiki/Petrichor)? I’m not sure I’d describe it as “like yeast”, but it’s the characteristic smell of wet soil.