Barry Fitzgerald (1) and Chris Nimptsch (2). 1. Trace
Measurement Ltd., Romford, United Kingdom. 2. Profamo Inc., Rancho
Palos Verdes, California.
Dissolved oxygen (DO) meters allow brewers to minimize DO in the
beer, which helps to protect the flavor and extend the shelf life of the
beer being produced. Large breweries will have many in-line DO meters,
package analyzers, and numerous portable meters, while a small brewery
may have just one portable; however, the challenge of correctly using
DO meters is exactly the same in all breweries. This paper does not
discuss new findings or discoveries—it is written simply to help users
in the brewing industry understand use of portable DO meters and to
summarize best practices.