eli5 – why does tapping the top of a pop can make it fizz less? Or is that just a myth I’ve been practicing for 30+ years?

Question

What the title says. Pop means soda btw.

In: 1560

Answer 1

How strange. Regardless of the truth or otherwise of this, I’d always been told it was the *bottom* of the can you were supposed to tap.

I came here expecting to read a bunch of similar comments, but now it seems I’m the only person here who thought that?