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Transit Temperatures of California Iceberg Lettuce Shipped by Truck During the Hot Summer Months

Author

Listed:
  • Hinsch, R. Tom
  • Rij, Roger E.
  • Kasmire, Robert F.

Abstract

This report describes the results of 10 test shipments of naked-pack iceberg lettuce shipped by highway trailer during the warm summer months. On arrival at eastern markets, lettuce in boxes that were loaded directly on the floor averaged 4.6°F (2.6°C) warmer than lettuce in boxes that were loaded on racks that raised the lettuce about 4 inches (10.1 cm) above the truck floor. The temperature of lettuce loaded against trailer sidewalls that had recessed vertical grooves was about 2°F (1.1 °C) cooler than the temperature of lettuce loaded against sidewalls that were flat. This study also included an enumeration of the various features of 623 randomly selected trailers at lettuce loading docks in central California in 1979. Most had flat sidewalls, wide canvas air-delivery chutes, front bulkheads, and extruded aluminum grooved floors. Most of the trailers were not precooled before loading.

Suggested Citation

  • Hinsch, R. Tom & Rij, Roger E. & Kasmire, Robert F., 1981. "Transit Temperatures of California Iceberg Lettuce Shipped by Truck During the Hot Summer Months," Marketing Research Reports 313281, United States Department of Agriculture, Agricultural Marketing Service, Transportation and Marketing Program.
  • Handle: RePEc:ags:uamsmr:313281
    DOI: 10.22004/ag.econ.313281
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    File URL: https://ageconsearch.umn.edu/record/313281/files/mrr1117.pdf
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    Cited by:

    1. Jordan, Jeffrey L. & Mann, Dieudonne & Prussia, S.E. & Thai, C., 1985. "Managing the Transportation of perishable commodities: Temperture control and stacking patterns," Transportation Research Forum Proceedings 1980s 311801, Transportation Research Forum.
    2. Hinsch, R. Tom & Wang, Chien Yi & Kindya, William G., 1983. "Loading Warm Naked-Packed And Wrapped Lettuce And Cooling It In Transit--Its Effect On Quality," Journal of Food Distribution Research, Food Distribution Research Society, vol. 14(2), pages 1-8, June.

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