SALT LAKE CITY, Ut. (CNN) — David Whipple says he bought the burger on July 7, 1999, and kept the receipt to prove it.
Whipple told KUTV he initially purchased the burger for a presentation he made about enzymes and deterioration, but it ended up in the pocket of a coat he forgot about for years.
Whipple said he decided to check the condition of the burger this week and found it hadn't changed much.
"There it is. My gosh. It hasn't changed," Whipple said as he unwrapped the burger. "The pickles, the only thing that's disintegrated."
Whipple isn't the only person who claims to have held onto a McDonald's burger for several years.
Two Australian men have displayed a McDonald's hamburger they claim to have purchased in 1995.
In November, Iceland celebrated the 10-year anniversary of the country's last McDonald's meal, which has been preserved under a bell jar and live-streamed to capture the decay — or lack therof — of the hamburger and fries.
