What does the red lion stamp on eggs indicate?

The red lion stamp on eggs specifically indicates that the hens that laid the eggs have been vaccinated against salmonella. This mark serves as an assurance to consumers that the eggs meet certain health and safety standards, particularly in terms of reducing the risk of salmonella contamination. In the context of egg production, vaccination is a critical health measure that helps protect both the poultry and the consumers, reflecting a commitment to food safety.

While other choices might relate to various attributes of egg production, such as quality, organic feed, or free-range status, the red lion stamp is specifically recognized for its emphasis on vaccination against salmonella, thus enhancing consumer confidence in the safety of the eggs.