Caged eggs will remain on supermarket shelves until 2030 as supply challenges and cost-of-living pressures continue.

Coles, Woolworths and Aldi promised to phase out or ban eggs from battery cage farms this year because of animal welfare concerns.

In the last 18 months bird flu outbreaks have caused disruptions to egg supplies, leaving supermarket shelves empty , pushing up prices and forcing purchasing limits to be placed on the popular protein .

"Due to the significant impact of recent avian influenza outbreaks in Australia, we have made the decision to pause the transition to cage-free for branded shell eggs," a Coles spokesperson said.

"This step is necessary to help the industry recover and ultimately ensure a stable supply for our customers.

"We take the welfare of animals

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