Rothbury Farms® Raisin Bread. Fresh from Grandpa's Oven®. Packed full of juicy, plump raisins. 0g trans fat. Grandpa began baking in 1923. Our Rothbury Farms Grandpa's Oven breads continue the tradition established by Grandpa over 80 years ago - delivering the highest quality baked goods, made from the finest ingredients, at a great value. Still family-owned and operated today, we look forward to continuing that tradition for many more years to come. www.rothburyfarms.com.