Bolten brewery, Korschenbroich, Germany.
O2 measurement in breweries.
No sample pre-treatment necessary.
Reliable, accurate measurement.
Almost no beer loss.
To meet the increasing quality requirements of today’s beer production process Bolten Brewery uses Pentair Haffmans’ portable O2 Gehaltemeter, type o-DGM.
Whether it is in the choice of raw materials or brewery equipment, the consistent focus on high quality runs like a thread through the 700-year history of Bolten Brewery. Founded in 1266, in Korschenbroich, Germany, the Bolten Brewery calls itself the oldest Altbier brewery in the world. “The love of the outstanding taste shapes the Bolten brand,” said Michael Hollmann, Managing Partner of Bolten Brewery.
Against this background, in recent years, monitoring the oxygen levels from production to bottling has become increasingly significant for quality assurance. “The level of dissolved oxygen is very important, as it negatively affects the flavor stability and shelf life of beer,” said Torsten Schmidt, Master Brewer at Bolten Brewery.
The brewery wanted a measuring system that met very specific requirements. “We wanted it to be used at various stations and to be able to measure the oxygen in liquids as well as the purity of gases,” recalled Heinrich Hartwigsen, Director of Quality Assurance. “In addition, it should be independent of the user, offer the utmost accuracy, have reliable measurement stability, and a fast response time. All of this with minimal maintenance and calibration requirements.
In the selection process all relevant oxygen measurement systems from different vendors were tested against each other. “The portable oxygen measuring system o-DGM from Pentair Haffmans fulfilled all of our requirements as a single system. This had us convinced,” Hartwigsen said.
“The portable oxygen measuring system o-DGM from Pentair Haffmans fulfilled all of our requirements as a single system. This had us convinced.”
- Heinrich Hartwigsen, Director of Quality Assurance, Bolten Brewery
The o-DGM’s oxygen measurement is certified by the TU Munich Weihenstephan and is based on the luminescence measurement. The fluorescence changes in response to the oxygen partial pressure.
Based on the measured oxygen partial pressure and the measured temperature, the amount of dissolved oxygen in the liquid is calculated. This measurement method is completely independent of the operator.
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