What does not characterize the production of Eiswein?

The production of Eiswein, or ice wine, is characterized by several specific features that are unique to its creation. The correct answer highlights that noble rot is not essential for Eiswein production.

Eiswein is made from grapes that are frozen while still on the vine and harvested at very low temperatures. This process allows the water in the grapes to freeze, concentrating the sugars and flavors, resulting in a very sweet wine. While noble rot, or Botrytis cinerea, is an important factor in producing some types of dessert wines, such as Sauternes, it plays no role in the creation of Eiswein. The grapes used for Eiswein are typically healthy and preserve their varietal characteristics without the influence of noble rot, which can change the flavor profile significantly.

The other aspects of Eiswein production are accurate and contribute to its quality and uniqueness. It is indeed made infrequently due to the specific climatic conditions required to freeze the grapes, and the resulting wine is known for its focus on varietal fruit flavors and its characteristic sweetness, making it a distinct style compared to other dessert wines.