Williams Sonoma is recalling Pumpkin Seed pesto sold nationwide over a botulism threat.
The California Department of Public Health, which discovered the problem, warned consumers not to eat the product because it was improperly manufactured and may be contaminated with Clostridium botulinum. The bacterium produces a nerve toxin that can cause paralysis.
The pesto, produced by California Olive and Vine of Sutter, Calif., has been distributed nationwide in Williams Sonoma stores since September. They were sold in 8-oz. ounce glass jars with screw-on metal lids, marked with the stocking numbers 6404305 and 6389043.