Frankstein, Grand cru vineyard in Dambach-la-Ville, Bas-Rhin, France.

Frankstein is an Alsace grand cru vineyard on the granite slopes just west of Dambach-la-Ville, in the Bas-Rhin. Its appellation covers 55.20 hectares across four separate hillsides between 220 and 330 metres in altitude, of which under 25 hectares were declared in production from 2022 to 2024. The vines are planted on light, stony, sandy granite soil where the bedrock outcrops in places.

The vineyard's documented history traces back to 1292 when the Sainte-Agnès convent of Strasbourg owned vines on this land, originally called Am Frankenstein, before receiving official grand cru recognition in December 1992.

The name joins German Frank, "free", and Stein, "stone", after the two-mica granite that crumbles into coarse sandy arena. Gewurztraminer covers 49% of the vines, Riesling 27%, Pinot Gris 22% and Muscat 2%, though Riesling gives the best results on granite and can be picked around mid-October.

The four non-contiguous slope sections lie just west of Dambach-la-Ville, between 220 and 330 metres, on the Alsace wine route between the Winzenberg to the north and the Praelatenberg 13 km south. Only part of the 55.20-hectare appellation is planted, under 25 hectares declared from 2022 to 2024. Since July 2025 the rules also allow bottles of 300, 150, 100, 50 and 37.5 cl.

The vineyard's granite soils composed of two-mica granite create demanding growing conditions that force vines to develop deep root systems, resulting in wines with pronounced mineral notes and exceptional aging potential.