The decor of the Sunshine Mill Winery in The Dalles might best be described as “grandma’s bomb shelter.” Framed vintage embroidery pieces hang next to “danger” signs. Gold-painted flour chutes frame the back of the bar counter. Mini chandeliers provide moody lighting in the cavernous area beneath the former grain silos, where thick columns hold up a 7-and-a-half-foot-high concrete ceiling. The Sunshine Mill winery opened 15 years ago inside the former Sunshine Biscuit Company flour mill in The Dalles. Built in 1911, it was the third mill on the site. (The first two burned down. Flour dust, it turns out, is highly combustible.) Under the ownership of the Sunshine Biscuit Company, the building was where Wasco County-grown wheat was milled and sent to bakeries that made products such as Cheez-Its and Hydrox cookies. Today, visitors can sip wine and snack on small bites next to the original Thomas Edison Motor that once powered one of the largest mills in Oregon. Conveyor belts, once ...