In summary, there is good evidence that different sensory
dimensions can increase refreshing perception (e.g., coldness, sourness
and clear appearance) or decrease refreshing perception (e.g.,
thickness, sweetness and astringency). We showed that refreshing
and thirst-quenching concepts and refreshing and freshness concepts
may be strongly linked since they have common sensory drivers.
Finally, mouth-wetting perception seems to play a critical role in the
perception of refreshing, thirst-quenching and freshness. Indeed 1)
astringency, which is related to mouth dryness [8] is a negative driver
of refreshing and thirst-quenching [5]; and 2) mouth wetting is
positively associated with freshness [7] and thirst-quenching [9,10],
while sourness is positively associated with refreshing [2,6]. Sourness
itself is generally related to mouth wetting due to the salivary flow
increase by acid tastants [10].