Several studies have demonstrated a positive correlation between
refreshing perception and pleasantness. Thus, for drinks with different
combinations of flavor and color rated by American students,
refreshing and hedonic ratings followed similar patterns; among
Japanese assessors, scores for refreshing intensity and overall
palatability for bottled “nutritive drinks” were positively correlated
, and in a group of UK consumers, the packaging rated as most
liked was also expected to contain the most refreshing beverage.
Similar associations between expected refreshing intensity and
pleasantness were found among American students rating toothpastes
[89]. Lastly, a study conducted with French consumers reported
that refreshing intensity delivered by gels was strongly correlated
with perceived pleasantness. In addition for a wide range of
different drinks rated by English assessors, thirst-quenching intensity
(we assumed as related to refreshing) and acceptability scores were
strongly correlated.