What industry did the refrigerated railcar impact the most?

The refrigerated railcar had the most significant impact on the food industry, particularly in the transportation of perishable goods. It enabled the long-distance shipping of meat, dairy, fruits, and vegetables, greatly expanding markets and reducing spoilage. This innovation not only facilitated the growth of the meatpacking and agriculture sectors but also transformed consumer habits by making fresh produce and other perishables more widely available. Overall, it played a crucial role in modernizing food distribution and supply chains.