Supermarket giant Coles is under pressure to move eggs off its warm shelves in a bid to protect shoppers from salmonella, matching the practice being rolled out by its main competitor.

Woolworths has pledged to keep eggs in refrigerated cabinets as it continues a nation-wide revamp of its stores.

The Aldi threat has forced supermarkets to cut their prices. Credit:Quinn Rooney

It is understood dozens of Woolies outlets have had new cabinets installed in the past year, allowing stores to keep fresh eggs chilled below seven degrees, which helps prevent the spread of the harmful salmonella bacteria.

The rollout comes as experts have warned about egg-related salmonella cases, which are on the rise around the country, leading to serious illness and hundreds of hospital admissions each year.