2013 horse meat scandal negative for horse DNA. products were tested but were negative for all foreign DNA. Of the 37% of beef products tested positive for horse DNA, Tesco's inexpensive Everyday Value Beef Burgers tested at 29.1%. All other reported brands had less than 0.3% horse DNA. These products originated from Liffey Meats and Silvercrest Foods in Ireland and Dalepak Hambleton food processing plant in the United Kingdom. Trace amounts of horse DNA were also found in raw ingredients imported from Spain and the Netherlands. Laboratory DNA investigations were requested by the authorities into possible donkey meat adulteration of minced meat products labelled
Tesco to Citigroup retail analyst David McCarthy, "[Tesco has] pulled off a trick that I'm not aware of any other retailer achieving. That is to appeal to all segments of the market". One plank of this strategy has been Tesco's use of its own-brand products, including the upmarket "Finest", mid-range Tesco brand and low-price "Value" encompassing several product categories such as food, beverage, home, clothing, Tesco Mobile and financial services. Beginning in 1997 when Terry Leahy took over as CEO, Tesco began marketing itself using the phrase "The Tesco Way" to describe the company's core purposes, values, principles, and goals This