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Display Title Near-Infrared
Spectroscopy
Page Content
Tools Used in the Sampling Process
Specific tools are needed to analyze the samples taken during the sampling process. Select one of the tools below to learn more about it, including when and where it is used during the Sampling Process.
Near-Infrared Spectroscopy
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| Near-infrared spectroscopy is a widely-used analytical chemistry technique that ascertains characteristics of a substance by analyzing the ability of that substance to absorb light near the infrared portion of the electromagnetic spectrum. In the context of brewing, near-infrared spectroscopy can be used during fermentation and other phases of brewing to analyze total cell count, specific gravity and alcohol content by volume. Near-infrared spectrophotometers are commercially available, and many are sized to fit on a standard laboratory benchtop. Small samples from throughout the brewing process are loaded into the spectrophotometer, allowing for quality control testing. In a typical brewing sampling plan, near-infrared spectroscopy is used to ascertain alcohol content by volume during conditioning, in Brite tanks, in cans, and in bottles.
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