A hedonic scale is common in this type of testing. Lastly, there are test to measure sensitivity. There are many types of Difference Test. A Triangle Test is a sensory test that is used to determine difference between products. These differences could be ingredients, processing, or differences in packaging.
Effective testing includes presenting three samples and asking which sample is different.
In any type of test, leaving room for panelists to make comments is also beneficial because it can sometimes better explain their choices. Multiple Paired Comparison Tests, where panelists are asked to taste two samples and rate attributes such as saltiness. The panelists may be asked to mark the sample that is the most or least salty. This test involves a number sample pairs. These are just a few of the numerous types of Difference Tests that are used in sensory evaluation.