Why are artificial frozen grapes not suitable for ice wine brewing?

Date: 2014-01-22 From: Print Font size: LargeMediumSmall

As explicitly provided in Canadian ice wine laws, ice wine must be produced by natural method instead of artificial freezing. Ice wine is made with natural frozen ice grapes by low-temperature squeezing and fermentation. Frozen grapes, under natural climate conditions, are low in water content and rich in sugar after air seasoning in autumn. Grape juice reaches 35Brix of sugar degree after juicing (i.e. Brix is 350g/L). Meanwhile, the late-harvested grapes on vines begin to slowly oxidize. The natural frozen grapes enjoy unique honey and dried-fruit fragrance, which is untouchable and unfulfillable by artificial frozen grapes.