Excerpts from the report: This report is based on research which was part of a project to develop more efficient work methods, equipment, and facilities for the off-farm handling, storing, and preparation for market, of intermediate and early crop potatoes. The data obtained were used to evaluate the engineering, economic, and biological aspects of six practical cooling methods, some of which are presently in use. The objectives of this study were: (1) To observe the nature of the storage environment produced by six different cooling methods, including supplemental cooling; (2) to measure the effects of the different methods on potato quality; and (3) in light of the observations of environment and product quality, to evaluate the relationship between cost and benefits derived for each method studied.