Turbidity

Parameter Selection

Application Importance of Turbidity in Brewing

A beer’s first impression is visual, based on the clarity, otherwise known as turbidity, of the brew. Beer turbidity is a parameter constantly monitored in many breweries. Several substances can cause haze in beer, but the most frequently encountered problem is due to a cross-linking of micronutrients known as polyphenols and proteins. These elements are always present in beer and contribute to haze when they combine to form insoluble particles.

Characterized by visible sediment, haze is sometimes used as a trait of the beer as in unfiltered wheat beers. Most often, however, haze is undesired. Chill haze is seen when oxidized compounds in the beer begin to polymerize, producing a precipitate at cooler temperatures. Upon warming, the precipitate dissolves and the haze disappears. Permanent haze occurs when these oxidized compounds form clusters that are insoluble even at warmer temperatures. Haze can also be an indicator of microbial spoilage, including Acetobacter aceti and Lactic acid bacteria, that may produce off flavors in the finished product.

Brewers can decide how they want to condition their product; some will choose to filter their product, improving clarity by removing yeasts, proteins and other debris while others will use additives to help those haze-inducing compounds dropout. A range of treatments are available for avoiding haze problems. Most important times to monitor the turbidity is after filtration and before the beer enters the bright tanks for carbonation. Brewers should aim for 0-0.5 FTU (Formazin Turbidity Units).

Meters

Portable Haze/Turbidity Meter

Hanna Instruments offers a meter that is ASBC (American Society of Brewing Chemists) compliant, utilizing a nephelometer to test for turbidity caused by haze. The meter is specially designed for beer quality measurements, providing accurate and precise readings every time.

  • ASBC method compliant
  • LED light source at 580nm
  • Signal averaging and continuous measurement mode
  • Data logging and USB for data transfer
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Portable Haze/Turbidity Meter

Hanna Instruments offers a meter that is ASBC (American Society of Brewing Chemists) compliant, utilizing a nephelometer to test for turbidity caused by haze. The meter is specially designed for beer quality measurements, providing accurate and precise readings every time.

  • ASBC method compliant
  • LED light source at 580nm
  • Signal averaging and continuous measurement mode
  • Data logging and USB for data transfer
Shop Now >

Benchtop Turbidity Meter

Ideal for any water-based application, our ISO compliant benchtop turbidity meter meets and exceeds the requirements of ISO 7027 method for turbidity measurements by use of an infrared LED light source. Based on a state-of-the-art optical system which guarantees accurate results, assures long term stability and minimizes stray light and color interferences.

  • ISO Compliant Method
  • Ratio and non-ratio turbidity modes
  • Multiple Turbidity Units of Measure (FNU, FAU, EBC, NTU)
  • USB for data transfer
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Calibration Solutions

Turbidity Calibration

Premade turbidity calibration standards provide a simple solution to validating your meter. Reusable with a long shelf life stability, these standards come in a wide range of values.

  • Certificate of analysis with lot number, reference values and expiration date for traceability
  • Solutions are made by Hanna Instruments and are traceable to NIST standard
  • Storage containers protect from light and damage
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Turbidity Calibration

Premade turbidity calibration standards provide a simple solution to validating your meter. Reusable with a long shelf life stability, these standards come in a wide range of values.

  • Certificate of analysis with lot number, reference values and expiration date for traceability
  • Solutions are made by Hanna Instruments and are traceable to NIST standard
  • Storage containers protect from light and damage
Shop Now >

Accessories

Accessories & Lab Supplies

Hanna Instruments provides you with everything you need for accurate and simple turbidity measurements. Turbidity accessories include:

  • Additional cuvettes and caps for sampling
  • Cuvette cleaning solution
  • Microfiber cloths to wipe down cuvettes
Shop Now >

Accessories & Lab Supplies

Hanna Instruments provides you with everything you need for accurate and simple turbidity measurements. Turbidity accessories include:

  • Additional cuvettes and caps for sampling
  • Cuvette cleaning solution
  • Microfiber cloths to wipe down cuvettes
Shop Now >