Stein is operated by two brothers Ulrich (or Ulli) and Peter Stein in Mosel, Germany. Ulli has his doctorate degree (or his ‘Doctor rerum naturalium’) as a biologist and is a viticulture engineer, while his brother, Peter, is the winemaker.
The Stein vineyards all have one thing in common—they are not easy to farm. Steep viticulture is difficult (and oftentimes impossible) to use machinery, so the terraced slate vineyards must be tended to manually. All of the vineyards are farmed ecologically and sustainably; there are natural cover crops that serve as habitats for beneficial insects and are mown or plowed to serve as a green fertilizer.