From Biodynamic wine maestro Sepp Muster, the Opok is a blend of Muster's four white grapes. Opok refers to the particularities of the soil in this part of Styria (Steirerland, Austria), which is compact and marly.

This wine is not so much aromatic as mineral with sea-shell purity. It fills the mouth while retaining a stoniness and just a hint of reductive smokiness.

Sepp and Maria Muster live in a beautiful house at the end of a windy road not far from the small town of Schlossberg. We’re in the southern part of Styria and the hills and woods of Slovenia are easily visible from the road that carves through the The vineyards themselves, at a typical altitude of 450-470 m, are notably rocky with clay and silt soils dominating their steep, hand-worked slopes. The character of the wines stems from this unique location, situated in this “318inerea” microclimate with the influence of the Koralpe (the nearby high mountain plateau region), with its cool nights and winds being mainly responsible for the character of the wines.

The vines grow on lime soil, composed of solid clay silt, known here as “Opok” which results in warm “dense” wines with intense varietal aroma character. The vines look wild and primitive with their single wire trellising, a reflection of the original method of vine training developed by Sepp’s ancestors’ they rise high along chestnut wood posts and branch out at approximately 1.80 metres height. The one-year canes hang down from the wire as if bending towards the earth. This practice was developed to promote a harvest of physiologically-ripe grapes, the idea being that the energy of the vines goes not into creating a canopy of leaves but into the very fabric of the grapes themselves.