Nbspa Brandrsquos Quality Reputation Can Be Destroyed On The Retail Shelf By A Bottle That Has Become Deformednbspjoseph Haun Tricorbraun Quality Engineer Has Prepared A White Paper About A Condition Known As Panel Sink Which Distorts Bottlespanel Sink Occurs When The Bottlersquos Sidewalls Are Sucked In By An Increased Pressure Differential Between The Bottlersquos Contents And The Surrounding Environmentnbsp The Pressure Disparity Is Caused By A Reduction In The Volume Of Product In The Bottle Or A Loss Of Gas Andor Moisture Through The Bottle Wallsnbsp It Occurs Most Frequently On Cylindrical Bottlespanel Sink Is A Universal Concern For Bottlers Because There Are Many Circumstances That Bring About A Pressure Differential However There Are Also Numerous Ways To Prevent Panel Sink By Varying The Bottlersquos Structure Changing The Resin From Which It Is Made Or Evaluating How The Bottle It Is Treated Before It Is Filled Nbsp