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 Clubcard users have concerns about the information Tesco and Dunnhumby hold and what they do with it. Every time a Clubcard is used a copy of the store shopped in, products purchased and price paid are stored against the Clubcard account. Applicants are asked to provide personal details such as name, address and children. Tesco have stated that this is to help them pick vouchers that are relevant to the holder and also monitor trends to help product availability. In February 2014, over 2,000 email addresses, passwords and voucher balances were leaked online following a security breach. Tesco shut down all