Tortilla Tear Strength
Producer of cornflour tortilla products needed a way to determine the texture and the resistance to tearing their products.
To be considered a good tortilla, the product has to be flexible enough to roll up but strong enough to hold a typically hot filling without tearing. Current methods for testing are very subjective and unreliable. The bakery product manufacturer wanted a way to put firm numbers to the properties of their products to replace historical subjective measurements.
Method
Individual samples to be tested were prepared by cutting 6 square samples from the same tortilla to fit into the testing fixture. All testing was done at room temperature using the TMS-Pro Texture Analyser. The samples were held in place using a ring clamp (Extensibility Fixture) and punctured through using a 1" inch cylinder probe. The test speed was set to 150mm/min and run to a distance of 35mm. This distance was far enough to have the probe puncture through the sample.
Significance
- Simple test to objectively measure the tear strength of tortillas
- Software facilitates automatic statistical analysis
- Allows customer to put "real" numbers to their subjective data
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