Hydroponic Lettuce Was Seen as Safe From Salmonella, Until an Outbreak

According to The New York Times; BrightFarms, which operates six commercial farms in six states, was purchased last year by the conglomerate Cox Enterprises. It planned to expand its capacity by 200 acres in the next two years, with five new greenhouses on the East Coast and in the Midwest and Texas, Mr. Platt said in a statement.

Hydroponic agriculture has spread coast to coast in the past decade. Some operations, like the BrightFarms site, are housed in greenhouses. Others are on rooftops, or grown in tower-like structures.

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