Featured Research

from universities, journals, and other organizations

Bubbles Best For Beer Lovers

Date:
January 8, 2001
Source:
University Of California, Davis
Summary:
Beer drinkers are choosy about foam on their beverage, and getting the foam right is an important selling point for brewers, according to Charles Bamforth, Anheuser-Busch professor of brewing science at the University of California, Davis.

Beer drinkers are choosy about foam on their beverage, andgetting the foam right is an important selling point forbrewers, according to Charles Bamforth, Anheuser-Buschprofessor of brewing science at the University of California,Davis.

"There's no question foam is important to consumers, but whatare the attributes that make it important?" said Bamforth.

To find out what drinkers like about foam, Bamforth showedover 300 beer drinkers in the U.S., Germany, England andJapan photographs of glasses of beer poured with differentheads of foam. Then they filled out questionnaires on whatthey thought of the beer.

Most of the interviewees expected that beer with good foamwould "taste better" than a flat-looking beer, even in theU.S., where beer is often drunk straight from the bottle orcan. Some thought that the beer with good foam actuallylooked colder, or was darker in color.

Draining a glass of beer sometimes leaves a lacy pattern offoam behind. Some drinkers thought lacing meant a cleanglass, while others thought it meant the glass was dirty. Infact, lacing has nothing to do with the glass, said Bamforth.Lacing happens when the bitter-tasting compounds from hopslink proteins in beer together. Brewers can control lacing bychanging the hop extract that they use for brewing.

The survey results were published in the Journal of theInstitute of Brewing.

BEER COLOR: BETTER BY EYE?

The human eye detects differences in beer color that aremissed by equipment currently used in breweries, according tobrewing expert Charles Bamforth of the University ofCalifornia, Davis. Brewers need better methods to check beercolor, especially for ales and stouts, he said.

Color is an important selling point for beer. Brewers need tocheck the consistency of batches of beer, and with the trendto microbrews, more amber beers, stouts and ales have comeonto the U.S. market. Deeper, more complex colors are animportant part of the style of these beers.

Breweries use a machine called a spectrophotometer to checkbeer color during production, but this measures only light ofa certain wavelength, said Bamforth.

Bamforth's laboratory compared the standard methodrecommended by the American Society of Brewing Chemists witha human test. A British ale, a U.S. lager, a European lagerand a stout were diluted so that they all gave the samereading on the machine. The human judges easily spotted colordifferences that the machine did not pick up.

The study shows that consumers see beer color in ways that aone-wavelength machine does not pick up, said Bamforth.Humans cannot replace machines on the bottling lines, butbrewers need to find better ways to check on beer color andhue, especially for production of darker beers.

The research was published in the Journal of the AmericanSociety of Brewing Chemists.


Story Source:

The above story is based on materials provided by University Of California, Davis. Note: Materials may be edited for content and length.


Cite This Page:

University Of California, Davis. "Bubbles Best For Beer Lovers." ScienceDaily. ScienceDaily, 8 January 2001. <www.sciencedaily.com/releases/2001/01/010108072942.htm>.
University Of California, Davis. (2001, January 8). Bubbles Best For Beer Lovers. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2001/01/010108072942.htm
University Of California, Davis. "Bubbles Best For Beer Lovers." ScienceDaily. www.sciencedaily.com/releases/2001/01/010108072942.htm (accessed July 24, 2014).

Share This




More Plants & Animals News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Boy Attacked by Shark in Florida

Boy Attacked by Shark in Florida

Reuters - US Online Video (July 24, 2014) An 8-year-old boy is bitten in the leg by a shark while vacationing at a Florida beach. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Goma Cheese Brings Whiff of New Hope to DRC

Goma Cheese Brings Whiff of New Hope to DRC

Reuters - Business Video Online (July 24, 2014) The eastern region of the Democratic Republic of Congo, mainly known for conflict and instability, is an unlikely place for the production of fine cheese. But a farm in the village of Masisi, in North Kivu is slowly transforming perceptions of the area. Known simply as Goma cheese, the Congolese version of Dutch gouda has gained popularity through out the region. Ciara Sutton reports. Video provided by Reuters
Powered by NewsLook.com
Dogs Appear To Become Jealous Of Owners' Attention

Dogs Appear To Become Jealous Of Owners' Attention

Newsy (July 23, 2014) A U.C. San Diego researcher says jealousy isn't just a human trait, and dogs aren't the best at sharing the attention of humans with other dogs. Video provided by Newsy
Powered by NewsLook.com
Professor Creates Site Revealing Where People's Cats Live

Professor Creates Site Revealing Where People's Cats Live

Newsy (July 23, 2014) ​It's called I Know Where Your Cat Lives, and you can keep hitting the "Random Cat" button to find more real cats all over the world. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

    Health News

      Environment News

        Technology News



          Save/Print:
          Share:

          Free Subscriptions


          Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

          Get Social & Mobile


          Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

          Have Feedback?


          Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
          Mobile: iPhone Android Web
          Follow: Facebook Twitter Google+
          Subscribe: RSS Feeds Email Newsletters
          Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins