Research & Reports

How The Foam On Your Beer Keeps It From Spilling

A new study explains how your beer’s foamy top helps it from spilling, by clinging to the glass.

How The Foam On Your Beer Keeps It From Spilling

Ever wondered why you need razor sharp concentration when holding a cup of coffee or tea so it doesn’t spill over but you can walk across a crowded bar without spilling any of your beer on your hands?

Researchers from the Massachusetts Institute of Technology and École Polytechnique Fédérale de Lausanne in Switzerland wondered too and gave us an answer.

 

Beer Foam: Why It Stops Our Beer From Spilling

It all comes down to foam and capillary forces. Capillary action is the force that describes how droplets can form and how the surface of a liquid adheres to the side of a container.

When it comes to your beer, the foam clings to the sides of the cup and it doesn’t allow the beer to travel as far up the glass as a normal foam-free drink would. It’s the surface tension of the many tiny bubbles at the top of your beer that cling to the glass and provide a shield to movements.

The foam doesn’t have to be thick — even foam only five bubbles thick will have a measurable effect. But the thicker the foam the better at preventing spillage. Brews like Guinness would often be the least spillable beer at the bar.

 

Original story from American Institute of Physics.

 

Interested in learning more about beer? Check out JB University to up your knowledge on beer styles, the science behind brewing beer, and so much more:

Beer Styles 201: All About Imperial / Double India Pale Ales
All About Dark German Beer Styles: Doppelbocks, Dark Lagers, and Schwarzbiers
How to Brew Glow in the Dark Beer — A DIY Home Brewing Kit
Beer vs. Tylenol: Which One Is A Better Pain Reliever?

Related Posts

Research & Reports

5 Cool Sustainability Facts You Probably Didn’t Know About Craft Beer Market

These 5 things Craft Beer Market does to keep their locations environmentally friendly.

Research & Reports

Drinking & Driving in Canada — Stats & Other Things You Need to Know

Driving under the influence of drugs or alcohol is a serious offence in Canada. Here’s what you need to know about drinking and driving in Alberta, plus 10+ resources and contact information for the top-rated taxi companies in Calgary and Edmonton.

Research & Reports

Why Does Drinking Beer Make You Hungry?

Why do you always feel hungry after drinking beer? A new scientific study explains why most of us have urges to eat pizza, McDonald’s and Kraft Dinner after late night boozefests.

Research & Reports

6 Beer Stocks Everyone’s Been Talking About

Disclaimer: This is a website about beer… Not the Financial Times magazine.

Research & Reports

The Sonic Foamer: How Ultrasonic Waves Can Enhance The Taste And Aroma Of Your Beer

Anyone who’s ever poured a beer knows to carefully pour down the side of the glass to minimize the head on our beer. The makers of the Sonic Foamer, a bubble-inducing beer gadget, are on a mission to change that.