Everything about Measuring Turbidity in the Brewery!

The haze in beer is something the chemistry world refers to as turbidity. Haze can result from polyphenols, proteins, and even carbohydrates in colloidal form. Once upon a time, haze in beer, the floating dust or sediment particles, in a beverage, was not desired. However, time has changed, and now misty unfiltered beers are showing up in beer taps all over. Yet, what is turbidity in beer? How Turbidity Measurement in brewery is performed? Is it a good thing? These questions come in our minds every time we hear someone saying, ‘haze in beer.’ Read on to find out!

Why Turbidity Measurement in brewery is important?

As discussed above, a few years ago, clear beer was the desired one. Beer is not naturally brilliant or clear. It takes a lot of work to clarify it. Here, clear means non-hazy and bright as opposed to the colour of the water. Hence brewers have been working on making beer bright for decades. So, when did clear beer become popular? Most likely, during the time, brewers worked on creating a targeted clean flavour profile by cleaning up the yeast. Historically, for this, they followed many techniques like combining electrostatic charge with yeast, passing the solution through cellulose filter sheets, etc.

Finally, filtration was a huge step forward in this process. However, now that all of these advances have been made in making beer clear, there is a recent trend in making beer as cloudy as possible. However, depending on the type of beer, haziness can be a desired or undesired effect. This is where instruments like the TurBiScat helps brewers maintain consistency between batches.

Choosing a Turbidity Meter:

Turbidity Measuring device have a lens, a light source, and a detector. The detector is located 90° from the source of light, which works together in measuring the turbidity of the sample. When a sample is placed in the path of the light, some particles in the sample tend to scatter the beam of light in such a way that it falls on the detector at 90°. Then the detector can find out the amount of light scattered. This value is compared to the standards on the calibration curve.

Some meters include one more detector placed at 180° to account for the transmitted light. Such meters can be used for samples that have high turbidity.

Once you have your gauge, taking turbidity Measurement in brewery is easy and involves just a few simple steps:

– Calibrate the device with standard cuvettes.

– Fill a cuvette with your beer sample.

– Clean the outside of the cuvette thoroughly for accurate results.

– Place the cuvette inside the meter and take the reading as quickly as possible to measure the total haze reading.

The author is a leading supplier in Australia and New Zealand of and reliable and innovative solutions that precisely detect and measure a range of process variables in many industries. For details on Sigrist TurBiScat, visit http://prodetec.com.au/.

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