Colour Interval Value Publication Food Name Reference
[ 0.02, 0.05 ) 0.02 mg/100 ml Beer, ale McMurrough I., et al (1984) Phenolic acids in beers and worts. Journal of the Institute of Brewing 90:181-187 PubMed (25664918)
[ 0.05, 0.07 ) 0.07 mg/100 ml Beer, ale, British export B McMurrough I., et al (1984) Phenolic acids in beers and worts. Journal of the Institute of Brewing 90:181-187 PubMed (25664918)
[ 0.07, 0.11 ) 0.10 mg/100 ml Beer, ale, British export A McMurrough I., et al (1984) Phenolic acids in beers and worts. Journal of the Institute of Brewing 90:181-187 PubMed (25664918)