Egg farmers are warning customers that they can expect to pay up to 20 cents more per dozen, reports ABC.

Farmers blame the rising price of grain for pushing egg costs up.

Meg Parkinson, the president of Free Range Egg and Poultry Australia, says egg prices have remained steady for years, but a price rise is now inevitable.

She said: "That price of grain has jumped up again, back to where it was when we had the drought on. We are going to have no choice but to see if we can ask our customers to pay 20 cents a dozen more to cover that cost."