Guerila wines are a reflection of biodynamic cultivation in the dramatic Vipava Valley wine region, with steep, terraced vineyards allowing for tremendous wines of elegance. The wines are the fruit of hand-picked biodynamic grapes where harvesting and all of the work in the cellar takes place at the appropriate cosmic rhythms in accordance with the biodynamic calendar.

The Tomac family has been winemaking for over 100 years, and has a total of 9ha of vineyards, including the varietals of Rhine Riesling, Chardonnay, Sauvignon Blanc, Pinot Noir and old Plešivica varieties. Many vineyards are very old, up to 80 years!, and all Tomac wines are produced exclusively from grapes from the family's own vineyards.