firmness, toughness, area of work
The firmness of many types of whole or diced fruit has traditionally been measured with Kramer Shear Cells where sets of blades are passed through a box with a slotted bottom. The TA-91 Kramer Shear Cell generates slightly lower coefficients of variation but also generate high force loads and require more clean up between tests than the puncture rig. A similar new method uses the TA-65 Multiple Puncture Probe. Both fixtures provide comparable results on whole or diced products when used with the TA.XTPlus Texture Analyzer. To demonstrate the comparability of the results this study uses both fixtures with fresh strawberries. Both methods proved to be quite capable of testing fresh fruit like strawberries.