( CNN ) -- A voluntary recall of eggs because of salmonella fears reached 380 million eggs Wednesday , the Egg Safety Center said . Wright County Egg of Galt , Iowa , which announced an earlier recall last week , added several more batches and brands to the recall Wednesday afternoon . `` Wright County Egg is fully cooperating with FDA 's investigation by undertaking this voluntary recall , '' the company said in a statement . `` Our primary concern is keeping salmonella out of the food supply and away from consumers . As a precautionary measure , Wright County Egg also has decided to divert its existing inventory of shell eggs from the recalled plants to a breaker , where they will be pasteurized to kill any salmonella bacteria present . '' After an uptick in salmonella infections , the Centers for Disease Control and Prevention , and the Food and Drug Administration traced the source and determined it was most likely eggs from Wright County Egg . The company says it is working to determine how the shell eggs are being contaminated . The new recall covers eggs branded as Albertsons , Farm Fresh , James Farms , Glenview , Mountain Dairy , Ralphs , Boomsma , Lund , Kemps and Pacific Coast and are marked with a three-digit code ranging from 136 to 229 and plant numbers 1720 and 1942 , the company said . The earlier recall covered the Lucerne , Albertsons , Mountain Dairy , Ralph 's , Boomsma 's , Sunshine , Hillandale , Trafficanda , Farm Fresh , Shoreland , Lund , Dutch Farms and Kemps brands and are marked with a three-digit code ranging from 136 to 225 and plant numbers 1026 , 1413 and 1946 . The plant number beings with `` P - `` and is followed by the three-digit code . Both recalls affect eggs packed in several different sized cartons , from a half-dozen to 18-eggs . Only shell eggs are affected by the recall , the company said . Consumers are encouraged to return the eggs in their original packaging to where they were purchased for a full refund . Salmonella bacteria can be found inside and outside of eggs that appear to be normal .
Recall adds to recall announced last week . The company said it will add a new ingredient in the recalled products that is not listed on its label. Company says it is cooperating with FDA investigation to find source .