US man unveils 79 cent Macca's burger he purchased in 1999. Photo / 2News
US man unveils 79 cent Macca's burger he purchased in 1999. Photo / 2News
Ever wondered what a 20-year-old Macca's burger looks and smells like?
David Whipple has the answer for you.
After buying a hamburger from his local McDonald's in Logan, Utah, back in July 1999 for a measly 79 cents — he has kept it for more than 20 years for research reasons, news.com.au reports.
"I had a hamburger that I was using to show people about how things deteriorate," he told 2News.
David Whipple says his 20-year-old McDonald's hamburger looks pretty new with only a faint smell of cardboard. Photo / 2News
He carried it around for about a month before stuffing it in a coat pocket and forgetting all about it.
"The coat got thrown in the back of my van, and I guess it just got hung up on our closet," he explained. "Subsequently, we moved from Logan to St. George, Utah, and it stayed there for a couple years, and I think my wife was giving the coat away or something and found it."
That was in 2013 when the burger was about 14 years old. At that time, Mr Whipple was interviewed about his ancient burger and his story went viral, having more than 10 million YouTube views.
He purchased it back in July 1999 for 79 cents to use in demonstrations about enzymes and deterioration. Photo / 2News
Now, more than six years on, he has done it again with his zombie burger going viral all over again.
A disgusted user wrote: "Why I don't eat fast food. So gross!!!!"
To put into perspective just how long Mr Whipple has had the Macca's burger, it was purchased around the time former US president Bill Clinton survived being impeached and the first Star Wars prequel was the number one movie.