While consumer panels are the most appropriate way to
determine the end of product shelf life in the first instance,
their use is not practical for ongoing work. Alternatives for
industry include the use of trained or expert panels maintained
by a company, where key sensory attributes can be
used as markers of shelf life deterioration, or the use of
appropriately calibrated or validated objective measures
such as peroxide values that are widely used industrially
because of the relationship between product rejection
related to off-flavors and the oxidation of fats and oils (Calligaris
et al. 2007).