NSW Food Authority said Ash and Sons Eggs is conducting a recall of various cartons of 12 eggs due to potential salmonella contamination.

NSW Food Authority on Wednesday said Ash and Sons Eggs is conducting a recall of various cartons of 12 eggs with single sticker best before dates of April 26 and May 3.

The products have been available for sale at IGA supermarkets, independent stores, bakeries and butchers in NSW, the authority said in a statement.

Food products contaminated with salmonella may cause illness if consumed.

Australian Eggs managing director Rowan McMonnies said the owners of Ash and Sons farm had undertaken voluntary testing and the farm is now under quarantine.

"Australian Eggs has been working closely with government authorities to identify supply chain links between farms after (Salmonella Enteritidis) was identified in egg products last week," Mr McMonnies said in a statement on Wednesday.

"This latest farm was firmly on our radar because it is close to farms in which salmonella has recently been detected," he said.

NSW Food Authority said any consumers who are concerned about their health should seek medical advice and return the products to the place of purchase for a full refund.