What is Bird Swing Glass Defect?

What is Bird Swing Glass Defect?

By: Berlin Packaging Specialist
Date: November 11, 2019

Bird Swing is a type of glass defect during the manufacturing process of glass bottles.

A bird swing can occur both in the “press-blow” and “blow-blow” process. It is a thin strand of glass across the inside of a container either between the walls or between the wall and the bottom.