What is the name given to sweet wines made from frozen grapes?

The term for sweet wines made from frozen grapes is Icewine, also known as Eiswein in German-speaking regions. This unique style of wine is produced when grapes are left on the vine into winter until they freeze. The frozen grapes are then harvested and pressed while still frozen, which allows for the concentration of sugars and flavors, leading to a rich, syrupy wine.

Icewine is renowned for its intense sweetness balanced by high acidity, which creates a refreshing profile despite the sugar content. The freezing process helps remove much of the water component of the grape juice, resulting in a more concentrated sweet wine.

Late harvest wines, while they may also be sweet, are made from grapes that are picked later in the season, but not necessarily frozen. Fortified wines have spirits added to them, which is a different process altogether, and botrytized wines are made from grapes affected by noble rot (Botrytis cinerea), which contributes to their sweetness in a different way. Thus, Icewine is the distinct style that specifically involves the use of frozen grapes.