
Originally Posted by
fishdr
So - total wine moron here - what does freezing the grapes do to the taste of the wine???
"To make Icewine, the grapes are left on the vine until after the first frost hits. These grapes are harvested after being frozen in the vineyard and then, while still frozen, they are pressed. They must be picked early - before 10 a.m. During both of these processes the temperature cannot exceed -8 degrees C. At this temperature (-8 degrees C) the berries will freeze as hard as marbles. While the grape is still in its frozen state, it is pressed and the water is driven out as shards of ice. This leaves a highly concentrated juice, very high in acids, sugars and aromatics." from Vintners Quality Alliance (VQA) of Ontario
There are two things at work here affecting the sweetness. First, it is a late harvest and therefore the grapes are a bit overripe and therefore naturally sweeter. Second, the water freezes and then is forces out as ice leaving more sugar behind than if you press unfrozen grapes.
Brina
"Truth goes through three stages: first it is ridiculed; then violently opposed; finally, it’s accepted as being self-evident." Schopenhauer