Measuring Haze in Beer Clarity Analysis

Beer clarity is a parameter constantly controlled in the brewery. Clarity can be affected by haze, or insoluble or semi-soluble particulate matter which is small enough to form a colloidal suspension in beer, typically less than 2 mm. These particles scatter transmitted light and are observed as a degradation in the brilliance of the beer. To assure consistent product quality, the brewmaster needs more than visual inspection.

hi847492Several substances can cause haze in beer, but the most frequently encountered problem is due to a cross-linking of polyphenols and proteins. These materials exist in equilibrium in beer and manifest themselves as a haze when they combine to form insoluble colloids. A range of stabilisation treatments is available for avoiding haze problems, and the product has to be controlled in several steps during the brewing process, particularly after filtration and before the beer enters the bright tanks.


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The HI847492 Haze Meter is a highly accurate portable meter for beer analysis that reflects HANNA’s years of experience.The meter is specially designed for beer quality measurements, providing accurate and precise readings every time.  The instrument utilises nephelometer to test for turbidity caused by haze and is based on a state-of-the-art optical system which guarantees accurate results, assures long term stability, and minimises stray light and colour interferences.

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