Comparing Warner-Blatzler shear force measurements using round and square cross-section cores, reported that the WBsSF method was technically simpler and allowedfor easier recognition of muscle fiber orientation, thereby ensuringthat samples were taken parallel to muscle fiber orientation. Besidesbeing described as more rapid, accurate and technically less difficulttechnique than WBSF, the use of WBsSF should maximize the correlation between instrumental evaluation and tenderness perception, because cuboids samples are commonly used in sensorial protocols. when utilizing both sensory and instrumental analysis to predict tenderness, the correlations were likely to bethe greatest when both sampling methods were identical.This study was conducted to compare the use of WBSF and WBsSFprotocols in assessment of beef tenderness and to determine if, and towhat extent, the correlation between sensory meat tenderness scoresand shear force values can be increased using square crosssection cores rather than round cores .