A Central California company is recalling about 1 million pounds of pistachios over concerns of possible salmonella contamination.
Food safety officials are looking through Setton Farms' plant in rural Tulare County to see if it could lead them to the source of the contamination.
The recalls began last Friday when the Georgia Nut Company recalled its Kraft Back to Nature Nantucket Blend trail mix after some samples tested positive for salmonella. Setton Farms has started a separate recall of roasted pistachios, and grocery operator Kroger also has recalled some pistachio products.
No illnesses have been reported.
Setton Farms' Web site says it's the second-largest pistachio processor in the United States.