Rob Matheson | MIT News Office
September 7, 2015
India is the world’s leading milk producer, with many of its people relying on milk as a primary source of income. Indian dairies buy milk from local farmers at village collection centers, and then sell the milk or use it to make dairy products.
But with rural India’s limited electric grid, often available for only several hours daily, keeping milk fresh — it must be refrigerated within a few hours of milking — becomes very difficult. Many dairies use expensive diesel generators for refrigeration, or risk high percentages of spoiled product: Of the roughly 130 million tons of milk produced by India each year, millions of tons go to waste or reach the market as low-quality dairy products that pose safety threats. All this also reduces the income of Indian farmers
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