Embracing generations old techniques learned from his grandfather Lino Martinelli, Darek farms his vineyards according to Biodynamic principles; He is considered to be one of the leaders in the field of Natural Wine in Northern California.

In the cellar, no temperature control, enzyme additions, lab grown yeasts or new oak are employed - plus, all crushing is done under foot. With the sole exception of the addition of a small amount of sulphites for preservative purposes just prior to bottling, all of the wines produced at Old World Winery are made without any additives or manipulation so that they may be the truest expression of the land.