Kvasny Prum. 1995; 41(8): 223-238 | DOI: 10.18832/kp1995014

Modern methods used for sensorial beer bitterness evaluation.Peer-reviewed article

J. VELÍŠEK, L. KALINOVÁ, J. POKORNÝ

One-way (scalar) evaluation of beer bitterness does not give sufficiently reliable results and for this reason should be replaced by a dynamic evaluation, eg. entire time sequence of bitterness development during testing. By time course of bitterness average values determination, medians or by means of polynom expression does not give satisfactory results with respect to results variability gained from individual panellists. Better results gave therefore results evaluation by main components analysis method (PCA), where by corresponding scores of the first main components involvement, a dispersion of results was attained with 95% accuracy. The great extent of results dispersion can be explained owing to beer bitterness response by individual panellists.
(In Czech, English summary only)

Keywords: beer, bitterness, sensorial evaluation, methods

Published: August 1, 1995