This study compares different methods for the assessment of yield stress and level of thixotropy in semisolid emulsions, using three instruments: an air-bearing controlled-stress rheometer, a T-bar viscometer and a texture analyser. The following methods were used to assess the yield stress: a low-rotation T-bar test, a shear stress sweep, a shear rate sweep, an oscillatory stress sweep and an immersion/de-immersion test on the texture analyser. The level of thixotropy was assessed by: a hysteresis loop test, a three-step thixotropy test and a repeated immersion/de-immersion test. It has been found that there was good correlation between the two rheological methods for detecting the level of thixotropy, the hysteresis loop and the three-step thixotropy test.
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