Pinot Grigio grows in a variety of different climates. Warmer regions can produce riper styles.Sauvignon Blanc likes cooler climates or it will ripen too quickly. It's a vigorous variety that needs poor soils.
Pinot Grigio is a less aromatic grape variety. Winemaking techniques greatly influence style.Sauvignon Blanc is an aromatic grape. Stainless steel is often used to preserve fresh flavors. And oxygen exposure is minimized.