The NSW Food Authority is urging people to check the eggs in their kitchen for a "BEC" or "BEC115" stamp on the shell as they may be contaminated with salmonella.

NSW Food Authority chief executive Lisa Szabo said eggs with the stamp should be thrown away.

People are being urged to check the shells of any eggs in their kitchen as they may be contaminated with salmonella. Credit:NSW Food Authority

"All other eggs are safe to eat, provided people exercise the usual caution required for a special care food like eggs such as washing your hands and avoiding raw egg products, particularly if you are a vulnerable population such as the immune compromised, under two or over 70 years of age or pregnant," Dr Szabo said.

"We typically see a rise in salmonella during the warmer summer months, so this is an opportune time to remind people to practise good hygiene generally when preparing food and to always keep their hands, surfaces and utensils clean and dry before and after handling eggs."