Federal officials trying to trace potentially tainted pistachios say it could take weeks before all the products involved are tracked down.
"I think the vast majority of pistachio products are going to be OK," Dr. David Acheson, the FDA's associate commissioner for foods, said in a phone interview Tuesday.
Still, Acheson cautioned consumers against eating anything with pistachios, from cookies to ice cream, until investigators from the Food and Drug Administration and the California Department of Public Health learn more.
Eight to 10 state public health workers are teaming up with federal officials to interview 36 wholesalers who buy from Setton Pistachio, a large California processor.
The company recalled at least 1 million pounds of pistachios after Kraft Foods Inc. testing detected salmonella in some of Setton's nuts.
The recall comes amid another for spices distributed by a Bay Area plant, and in the wake of recalls in the past two years for salmonella or E. coli contamination in peanut butter, tomatoes, peppers, spinach and other products.
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