Should You Wash Eggs? Understanding the Best Practices

Eggs are a fundamental ingredient in many meals, but whether they should be washed before use depends on their source. Grocery store eggs and farm-fresh eggs have different handling requirements, and understanding these distinctions is essential for food safety and quality. Grocery store eggs in the U.S. undergo a washing and sanitization process before packaging, which removes contaminants but also strips away the protective cuticle that naturally shields them from bacteria. As a result, these eggs require refrigeration to prevent contamination. In contrast, farm-fresh or backyard eggs retain their natural protective layer, which helps prevent bacteria from penetrating the shell. Washing these eggs too soon can remove this barrier, increasing the risk of bacterial contamination. Experts suggest that unwashed farm eggs should be stored in a cool, dry place and only washed immediately before use, if necessary.

Lisa Steele, a poultry expert, emphasizes the importance of proper egg handling. Farm-fresh eggs with visible dirt can be gently cleaned with a dry cloth or fine sandpaper instead of water to preserve their natural protection. If washing is necessary, it is best to use warm water, as cold water can cause the egg’s contents to contract, potentially drawing bacteria into the shell. Washed farm eggs should then be refrigerated to maintain freshness and safety. On the other hand, eggs from commercial sources should never be rewashed at home, as they have already been sanitized and reintroducing water can increase contamination risks. Proper storage practices, such as keeping eggs in their original carton and maintaining a consistent cold temperature, help extend their shelf life and minimize exposure to bacteria.

The need to wash eggs ultimately depends on their origin. Store-bought eggs, having already undergone cleaning, should remain unwashed and refrigerated. Farm eggs, however, can be left unwashed until use and stored in a cool place. By following these expert recommendations, consumers can ensure they are handling eggs in a way that preserves their freshness and reduces health risks. Whether sourced from a supermarket or a backyard coop, proper egg storage and washing techniques play a crucial role in food safety.