how does gum pop when you blow a bubble?

Answer 1

You blow too hard.

If you want to blow the biggest bubbles possible, be careful and blow slowly. Use slow even breaths, this gives your gum time to stretch and grow, but also keeps even pressure on the gum to keep it from sagging. Dont tighten your lips around the bubble like you just suckd on a lemon this will force you to blow harder and pop your bubble.

Answer 2

Too much air inside.