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The spoilage problem
Fresh meat, fruit, vegetables, dairy products, and other perishables could travel only limited distances without cooling. Early refrigerator cars used insulation and ice to extend shipping range.
A national food market
Refrigerated transportation helped connect agricultural and meatpacking regions with distant cities. Seasonal produce could reach consumers far from where it was grown.
Technology changes
Mechanical refrigeration eventually replaced ice-based systems. Modern refrigerated railcars and intermodal containers can maintain controlled temperatures over long distances.
Impact on everyday life
Temperature-controlled transportation helped make a wider variety of foods available far from their place of production, linking railroad technology to changes in farming, retailing, and American diets.
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