'Guac Signal' Sparked Chipotle's Frantic Bid to Recall Jalapeños

'Guac Signal' Sparked Chipotle's Frantic Bid to Recall Jalapeños →

Chipotle Mexican Grill Inc. figured out that jalapeños were the source of a salmonella outbreak and began an automated recall system to notify restaurants and destroy the tainted peppers. The company was able to identify the problematic ing…