400,000 square feet of Velveeta, buried deep within the earth.
Unlike traditional cheese caves, which can impart the particular flavors of time and place—the unique combinations of bacteria, yeast, and mold that cheese makers call terroir—Wired magazine explains that in the case of Kraft's cave:
It’s not about aging, it’s about cheap storage: Moving refrigeration underground saves massive amounts of energy, since the temperature 100 feet down is a constant 58 degrees Fahrenheit. An above-ground pump sends 13,000 gallons of chilled brine through the system every day, keeping the warehouse at a cool 36 degrees.
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Photograph by Christoph Morlinghaus (who also explores parking lots and greenhouses), via Wired.