Free Amino Nitrogen Analysis (FAN)

Free Amino Nitrogen (FAN) testing is an essential analysis in brewing and winemaking. FAN is crucial for yeast health and fermentation, as it provides the necessary nitrogen for yeast growth and metabolism. Testing involves measuring the concentration of amino acids and ammonia in the sample, using techniques such as colourimetric assays or high-performance liquid chromatography (HPLC). Proper FAN levels help ensure a healthy fermentation process, leading to better flavour development and overall product quality. Regular FAN testing can help brewers and winemakers optimise their processes and maintain consistent production standards.