The U.K. is traditionally a brown-shell market.  With increased demand during COVID restrictions, a number of chains including Tesco offered white-shelled eggs, either packed as white or in combination with browns.  Tesco is cooperating with major egg producer Noble Foods in a trial to determine acceptability. 

The program allows contract producers the opportunity to determine production performance of white-shelled flocks in comparison to conventional brown-feathered strains.