World’s first ‘drip-free’ wine bottle unveiled by US scientist

By Daniel Woolfson

- Last updated on GMT

Drip-free: scientist Daniel Perlman's bottle uses physics to avoid spillage
Drip-free: scientist Daniel Perlman's bottle uses physics to avoid spillage

Related tags: Glass

The days of near-unavoidable tablecloth stains may be nearing their end, with a US scientist unveiling the world’s first drip-free wine bottle. 

Biophysicist Daniel Perlman, of Brandeis University, Massachusetts, spent three years studying how wine flowed across bottles’ lips in a bid to create the problem-solving serving vessel.

He said: “I wanted to change the wine bottle itself. I didn’t want there to be the additional cost or inconvenience of buying an accessory.”

Perlman’s drip-free bottle features a 2mm groove cut into the glass just under the bottle’s lip, preventing droplets of wine from running down its neck after a glass has been poured.

The ‘eureka’ moment came when Perlman noticed streams of wine tended to curl backwards over the lip and run down the side of the bottle – due to glass’s hydrophilic (water-attracting) nature.

For a drop of wine to cross the groove, it would have to travel up the inside of the groove – against gravity, when the glass is held at a pouring angle. Instead, it drips back into the glass.  

Related topics: Wine

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