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Cold chains keep perishable produce at a controlled temperature from harvest to sale, preventing bacteria from —multiplyingmultiplymultipliesmultiplied rapidly. Food markets that neglect refrigeration risk spoilage, which can render entire shipments —unsellableunsellunsellingunsold within hours. Maintaining an unbroken cold chain is therefore —essentialessentiallyessenceessentialness for reducing waste and protecting public health.