Egg Washing Laws by State: The Short Version
By Bertie Holcombe, Poultry Editor — Published 5 February 2026 · Last reviewed 5 February 2026
The United States and the European Union have opposite egg safety regulations. Understanding why explains the bloom, the refrigerator requirement, and the state patchwork.
US federal law requires commercially produced eggs to be washed and refrigerated before sale. The reasoning: washing removes surface bacteria (primarily Salmonella on the shell exterior) and contamination. The tradeoff: washing removes the cuticle, a thin protein coating applied by the hen's body during the last hour of lay that seals the shell against bacterial penetration. Washed eggs must be refrigerated because the removed cuticle means the shell is now porous.
The EU takes the opposite approach: eggs are sold unwashed, the bloom is preserved, and refrigeration is not required in grocery stores. EU eggs at room temperature are safe for up to 28 days. US eggs at room temperature are safe for 2-3 days maximum after washing removes the bloom.
For backyard egg sales, federal law applies only to shell egg packers grading and packing eggs for retail commercial distribution — operations with more than 3,000 laying hens. Backyard operations are regulated at the state level, and state rules vary enormously.
California requires backyard eggs sold at farm stands to be washed and refrigerated. Texas exempts farm-direct egg sales under 500 dozen per week from washing requirements. Pennsylvania exempts sales at the farm gate from the state egg washing law. New York allows unwashed farm-direct sales.
The practical guide: look up your state's department of agriculture cottage food or egg law. The relevant search terms are '[State] cottage food law eggs' or '[State] exempt egg sales'. Most states have a clear farm-direct exemption at some production level.