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2 Φεβ 2021 · A Duo-Trio Test is an overall difference test which will determine whether or not a sensory difference exists between two samples. This method is particularly useful: The Duo-trio test is equally sensitive to the triangle test and is simple and easily understood.
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To advance the field of sensory evaluation, including...
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Sensory analysis — Methodology — Duo-trio test 1 Scope This International Standard describes a procedure for determining whether a perceptible sensory difference or similarity exists between samples of two products. The method is a forced-choice procedure. The method is
Analyse results from one of the following tests: 2-AFC, 3-AFC, Duo-Trio, Triangle, Tetrad. This is an alternative forced choice (AFC) discrimination test where panellists are presented with 2, 3 or more products and asked to select one product based on a pre-specified attribute.
The most common for use in the wine industry are the triangle difference test and the duo-trio difference test: triangle: “Is a particular lot made with rot-compromised fruit different from other lots?” duo-trio: “Is there a sensory difference among wines fermented with different yeasts?”
This document specifies a procedure for determining whether a perceptible sensory difference or similarity exists between samples of two products. The method is a forced-choice procedure. The method is applicable whether a difference exists in a single sensory attribute or in several attributes.
The sensory lab employs four different types of difference tests: the tetrad test, the triangle test, the duo-trio test, and the paired comparison test. The tetrad test is used to determine if there is a difference between two products by tasking panelists with grouping four samples into two groups of two.
22 Νοε 2024 · ISO 10399:2017 specifies a procedure for determining whether a perceptible sensory difference or similarity exists between samples of two products. The method is a forced-choice procedure. The method is applicable whether a difference exists in a single sensory attribute or in several attributes.
