What does a hashed email look like?

Could you please elaborate on what a hashed email appears to be? I'm curious to know if it's a recognizable format or if it's just a seemingly random string of characters. Does it maintain any semblance of the original email address, or is it completely transformed? Additionally, are there any common characteristics that one should be aware of when encountering a hashed email for the first time? I'm eager to gain a better understanding of this cryptographic concept.