Better Beer Quality by Measuring Dissolved Oxygen

by | Sep 26, 2006 | Measurement Instrumentation

Jim Cahill

Chief Blogger, Editor

One of the workshops that caught my eye at next week’s Emerson Exchange meeting is Dave Anderson‘s Dissolved Oxygen Measurements Improve Beer Quality and Lower Operating Costs. Dave is from Emerson’s Rosemount Analytical division. This probably caught my eye because I’m a fan of quality beer.

Dave helps us novices with the basics like what dissolved oxygen actually is. It’s the concentration of Oxygen (O2) in liquid phase remaining after exposure of gaseous oxygen to an aqueous solution. The process of brewing is aerobic where the yeast requires oxygen to convert the sugars to ethanol in the fermentation process. The dissolved oxygen measurement is important since too much oxygen can create unwanted side effects, including excess Dimethyl sulfide. This compound negatively impacts the beer’s taste.

The Rosemount Analytical Dissolved Oxygen sensors are designed to handle high pressure surges and not be as sensitive to flow rates. Most oxygen sensor can handle a few clean-in-place (CIP) operations which clean and sterilize the process vessels and piping. This sensor was designed to handle more than twenty of these CIP cycles.

Dave mentions the key process areas where brewers should measure dissolved oxygen. These areas include: brewhouse wort kettle, fermentation/aging tank, de-aerator vessels in the packaging area, and the utilities. Also, it is important to develop best maintenance practices to maintain highly accurate measurements over time.

Better control of the dissolved oxygen levels throughout the brewing process has great impact on the quality of the beer produced. And that makes us global beer consumers happy indeed. I hope to see a few of you next week in Nashville!

Submit a Comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Submit a Comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Subscribe for Updates

Follow Us

We invite you to follow us on Facebook, LinkedIn, Twitter and YouTube to keep up to date on all the latest news, events and innovations to help you take on and solve your toughest challenges.

Want to re-purpose, reuse or translate content?

Please do, Just link back to the post and send us a quick note so we can share your work. Thanks!

Our Global Community

Emerson Exchange 365

The opinions expressed here are the personal opinions of the authors. Content published here is not read or approved by Emerson before it is posted and does not necessarily represent the views and opinions of Emerson.