SF Bay Fog Chaser OneCups deliver single servings of a medium dark roast coffee that lives up to its heritage from the San Francisco Bay. Drinking a mug of SF Bay Fog Chaser coffee is a perfect way to start your day. It’s a full-city roasted blend of high-grown Central and South American coffees. The aroma is rich and fresh, and the taste is very smooth and balanced, with no bitter aftertaste. And the OneCups are environmentally friendly.