There is no official record for longest gum chewing; however, Guinness World Records has three official gum records, including Longest Gum Wrapper Chain, Largest Gummy Candy and Most People Blowing a Chewing Gum Bubble Simultaneously. There have been several Internet claims for the "longest gum chewing," but none have been substantiated.
The world record for the Most People Blowing a Chewing Gum Bubble Simultaneously was achieved in Spain in September 2014. The record was performed at the Joy Aslava nightclub. A total of 737 people gathered at the nightclub in order to break the record, which was previously set by a group of 721 people affiliated with the company Big League Chew.
The Guinness World Records office in London receives more than 1,000 applications for their world record titles each week. The Internal database holds more than 40,000 records. To get a record in the Guinness World Records database, a person has to first register their recorded proposal and then wait until a records manager can review the evidence.