Excerpts from the report: About one-third of all potatoes transported from the Red River Valley of Minnesota and North Dakota are hauled in truck trailers. This is over 3 million hundredweight annually. About 1/2 million hundredweight of these are processed into chips. Potatoes for chipping require special care in storage and transit. Temperatures much below 50° F. may cause accumulation of reducing sugars in potatoes and result in undesirably dark-colored chips. Potato chip manufacturers want potatoes, delivered at the plant, that can be made into light chips without costly and often uncertain reconditioning. Because of the diversity of ownership, control, and personnel in the trucking industry, little uniformity of trailers and protective services exists for hauling such commodities as potatoes. Some loads are well protected while others are seriously damaged in transit. Tests therefore were made to find ways of improving the transit temperature conditions for chipping potatoes hauled in truck trailers in winter.