Chipotle Mexican Grill, the Mexican restaurant group, is giving away 14,000 free burritos to visitors to its ‘hidden’ websites between 5 – 11 August.

The first 2,000 visitors each day to its daily 24-hour website will be able to download a voucher for a free burrito at one of Chipotle’s six London restaurants.

The websites will be revealed via social media channels on Twitter, Facebook and Instagram using #BurritoWatch. The flash websites will use speed reading techniques that let viewers read text more quickly by flashing single words centred to the page which are intended to compliment Chipotle changing perceptions of fast food.

The group currently operates sites across London at Wardour Street, St Martin’s Lane, Charing Cross Road, Baker Street, Upper Street and Wimbledon.

Earlier in the year the group announced plans to open at least two new sites before the end of this year.