Beer

Test Description Method Sensory threshold Levels in wine Comment Unit
Alcohol NIR % v/v
Real Extract The amount of dissolved solids in a beer (i.e. everything except the alcohol and CO2) NIR %w/w
Apparent Extract The attenuation of beer containing alcohol, excluding the CO2 NIR %w/w
Original Extract The amount of dissolved solids in wort (1% Plato= 1% w/w) NIR % Plato
Real Degree of Attenuation The degree to which the dissolved solids in a wort have been fermented NIR %
pH Potentiometry
Free SO2 Aspiration mg/L
Total SO2 Aspiration mg/L
Air Index A measure of all the gasses excluding CO2 Anton Paar CboxQC Extra sample bottle required mg/L
Carbon Dioxide Anton Paar CboxQC Extra sample bottle required % v/v
Lactic acid Enzymatic g/L
Colour 430nm Spectrophotometry au
International Bitterness Units