The most Mentos and soda fountains set off simultaneously is 4,334 and achieved by Chupa Chups Industrial Mexicana and Perfetti Van Melle (Mexico) at the Festival Internacional del Globo in León, Guanajuato, Mexico, on 15 November 2014.
Perfetti Van Melle beat thier own record by almost double at the Festival Internacional del Globo, a hot air balloon festival, in León, Guanajuato. Participants donned rain panchos to protect them from the streams of soda. Eight people were disqualified for launching their fountains prior to the signal, 138 people were disqualified for not following the rules properly and 500 fountains were not set off.
Comments below may relate to previous holders of this record.