The sensory preference (%) enables easy understanding of the
relative quality level and is applicable to a broad range of products.
For example, a 40% preference for the product at the end of its shelf
life signifies that the preference for the product at the beginning of
its shelf life must be 60%, if the ‘‘no preference’’ option was not
used. However, an average acceptability score such as 5.2 on a 9-
point scale does not provide the relative quality level, nor does it have consistency across a broad range of products from tofu to pasta
to fruit juice