"It revolutionized outbreak investigation," says Linda Harris, a microbiologist in the department of food science and technology at the University of California at Davis.

Laura Catena was pissed off. 

It was 1995 at a prestigious tasting in New York, where she was pouring her familys Bodega Catena Zapata wines. It was the first time that an Argentinian winery was invited to participate in the event, and one guest after another passed by her table. They used her spit bucket but, when she offered to pour them a taste of wine, they refused.