A processor of nutritional and granola bars looking for a quantifiable, consistent way to measure and ultimately better control the texture of their product. Current methods involved simple visual inspections and very subjective human sensory evaluation.
The processor had bars from different formulations with known textural difference detected through sensory analysis. However, they wanted to quantify the data and visualize the difference in the products. Also, they wanted to be able to measure textural properties within the same batches/formulations. A consistent and repeatable method of measuring and therefore controlling the texture is essential.
All testing was done using a TMS-Pro with a light-weight blade set at a speed of 250 mm/min, to a distance of 35mm, which allowed the blade to shear completely through the product. The graph to the right shows when the blade first cuts product (first peak), and then when the blade is slicing through the body of the product (jagged curves). The graph demonstrates consistency in this product batch.