If you want to understand what all the Clemens Busch fuss is about without committing to a single grand cru parcel, start here. Vom Grauen Schiefer means “from the gray slate,” and it’s drawn from the same celebrated sites that feed Busch’s top dry bottlings, just blended across the gray-slate vineyards. The result is a dry Mosel Riesling of remarkable purity for its place in the lineup: lemon-lime brightness, stone-dust minerality and that cool, energetic drive that defines the estate. Biodynamically farmed from old, ungrafted vines. Honestly one of the smartest dry Rieslings you can buy.