All wine lovers will know the horror of pouring a bottle with elegance and perfect form, only to look down and witness drips of wine dribbling down the neck and falling on to the table/sofa/floor.
The heartbreak. The humiliation. The wine stains on your sweatpants. Dr Perlman first noticed that the dripping was the most extreme when a bottle was full or close to full.
He also observed that streams of wine have a tendency to curl backward over the lip and run down the side of the glass bottle because glass is hydrophilic, which means it attracts water.