Beer

The test allows to determine the level of bitterness of beer (IBU), measuring the quantity of&nbsp;iso-ɑ-acids present in the wort or in the finished beer.The possibility to verify this parameter during the boiling phase or during fermentation allows to know the real&nbsp;responsiveness to the theoretical calculations and allows to supervise every production batch, ensuring a high-quality standard.

IBU test in beer and wort

CDR BeerLab® - simple, fast and reliable analysis system of beer.

Test type: End Point. Time testing: [uni]. Analysis sessions with multiple samples are possible up to a maximum of 16 tests for CDR BeerLab® and 3 tests for CDR BeerLab® Junior.<o:p></o:p><h3 style="margin-left:0px;">Sample treatment</h3>Use on beer or wort. The beer sample needs to be degassed using the ultrasonic bath (code 222062) before taking the sample. For higher accuracy in the analysis of wort we recommend to centrifuge (code 222061) the sample.

Method

Iso-ɑ-acids are extracted from beer through an appropriate solvent. After centrifugation the extract is read at 270 nm and the coloration is related to the degree of bitterness of the sample.

Test Principle

The Correlation curve for IBU test using the&nbsp;CDR BeerLab®&nbsp;and the&nbsp;UKAS accredited spectrophotometric method&nbsp;(Campden BRI Method AM/003 based on EBC Analytica 9.8, 2004) was obtained as part of <a href="/cdrbeerlab/validations/beer-analysis-referencemethods">the comparative study of the analytical methods of CDR BeerLab® and the reference methods conducted by the Campden BRI international laboratory</a>.

Calibration curve

The correlation curve between the CDR BeerLab® method for determining beer IBU and the UKAS accredited reference spectrophotometric method. R²=0.9913

Reagent test Kits

Measuring range

<h3>The traditional methods</h3>The traditional methods for measuring bitterness often requires a laboratory with a laboratory technician, UV/Vis spectrophotometer, water bath, glassware, solvents etc. and can take anywhere from 15 – 30 minutes.<h3>Features of CDR BeerLab® method to test IBU</h3><ul><li>It uses the optimized EBC reference method.</li><li>The IBU test can be performed directly at every step of the beer production process and so you have the possibility to study your recipe optimizing the additions of the hops and <a href="https://www.cdrfoodlab.com/cdrbeerlab/learn-more/late-dry-hopping-ibu-beer">monitoring the actual extraction of the bitter</a>.</li><li>The test can be performed in approximately 6 or 7 minutes by anyone.</li></ul>

Traditional methods vs CDR BeerLab® method to test IBU

It has been thought that late-hopping and dry-hopping do not contribute to IBUs in beer, however, in Hackney Brewery, an english brewery, brewers have been able to conduct an investigation into this with a very fast and easy in-house quality control without the need for a chemical laboratory: CDR BeerLab®. With CDR BeerLab® the IBU tests can be performed directly at every step of the beer production process and so you have the possibility to study your recipe optimizing the additions of the hops and monitoring the actual extraction of the bitter.&nbsp;

IBU test in beer and wort

Method

Test Principle

Calibration curve

Reagent test Kits

Measuring range

Traditional methods vs CDR BeerLab® method to test IBU

The traditional methods

Features of CDR BeerLab® method to test IBU

The Analyzers for process and quality control in beer brewing

CDR BeerLab®

CDR BeerLab® Jr