Sainsbury's switches to white eggs to cut carbon emissions by 12.7% without changing taste or price

Sainsbury's is transitioning all of its own-brand eggs from brown to white shells by 2028, aiming to reduce the carbon footprint of its egg supply by 12.7%. The company's life cycle assessment, independently verified, shows white eggs have lower emissions because the hens lay for longer and use feed more efficiently. All eggs will remain 100% British, free range, and RSPCA assured, with no change in taste, nutrition, or price. The move is a practical step in Sainsbury's broader Plan for Better sustainability strategy. While brown eggs have been the UK norm for decades, white eggs were common until the 1980s. The retailer has worked with suppliers for three years to manage the transition without disrupting supply or animal welfare standards. The change applies only to own-brand products; branded eggs will still offer brown options.