Is it normal to fart for 30 seconds?
Mostly.Normal for most people
A 30-second fart is unusual, but it can happen and usually isn’t a problem. It may be one long release or a few bursts that blur together.
Farts vary a lot in length, and a big buildup of gas can take a while to escape. What sounds like one marathon fart may also be several little bursts running together—your audience may not care about the technical distinction.