ELI5:What’s the difference between beating separately and folding in, and just beating it together? Doesn’t it both accomplish the purpose of mixing it?

Question

This is regarding egg white and yolk mixing.

In: Chemistry

Answer 1

When you fold in eggs you are preserving the air bubbles made when you beat the eggs to begin with ending up with a fluffy consistency. If you beat it altogether you just get scrambled eggs with no bubbles and no fluff