Our Aberdeen Angus Beef Fillet steaks are carefully selected and matured slowly for 28 days. This tender beef steak is lean and succulent, delivering a superior eating experience every time.Our Aberdeen Angus Beef has many superiour & unique attributes. Angus Beef has natural marbling within the meat which enhances the flavour and texture of the meat and gives a superior quality eating experience every time.Ocado works closely with our producers & processors to ensure the highest of quality. All Ocado Beef is sourced from Farm Assured farms in the UK & Ireland, reared to high standards of animal welfare, husbandry and with good environmental practices. Ocado beef only comes from prime Beef animals.If you find your steak has become brown where the meat is touching the packaging or in-between steaks this is because meat needs air to stay red in colour and it is the lack of air between the steak and the packaging that has caused this discolouration. This is called contact discolouration and will not affect the safety or flavour of the product.