rześki, orzeźwiający

Zgaduję, że crunchy jest synonimem crisp

Crisp: A wine with refreshing acidity. Acidity is more of a taste factor in white wines than in reds. White wines with a high amount of acidity feel crisp.
https://www.dummies.com/food-drink/drinks/wine/ten-terms-for...

Crisp: Denotes a fresh, young, wine with good acidity.
https://www.winehaven.com/WineGlossary

Taka propozycja na początek :)

Z poniższego linku wynikałoby, że podobny termin można znaleźć w slangu sommelierów - chrunchy/chewy

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Note added at 4 hrs (2020-01-24 13:40:47 GMT)
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choć oczywiście pytanie czy może to odnosić się do aromatu ?

Crunchy to jest to samo co chewy, co odnosi się do toffi.

ccccc
Toffee
Toffee, commonly associated with “chewy” whiskey. No surprise.
Basically, chewiness is a kind of whiskey texture, almost always associated with a thicker mouthfeel and generally associated with certain flavors, which, incidentally, have some affinity to delicious candy bars. Think toffee, chocolate, fudge, nuttiness, caramel, dried fruit. Some drinkers associate it with a whiskey’s ability to coat the palate heavily, so you almost physically want to chew it. Some find chewiness not just in mouthfeel but in accompanying complexity of flavor (buttery Chardonnay has a thick mouthfeel but isn’t really described as chewy). That’s where notes of toffee and caramel and dark fruit and smoke and spice come in. A lot for your palate to work with, as if some kind of metaphorical mastication could do the job.