A year and three weeks later, the content creator twirled the Big Mac around whilst remarking there was no sign of mould on the burger.
Bringing the beef patty to the screen she said: 'As you can see the lettuce after a year is still green.'
Naa Adjeley Tsofanye (pictured) has claimed her year-old Big Mac had no signs of mould - and the lettuce was still green
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She continued: 'This lettuce from this Big Mac is actually quite a serious deep green.'
Peeling the vegetable away from the year-old hardened piece of meat, the woman was taken aback by her discovery.
'Can you see the shine on my gloves? There is still some moisture in it - it hasn't entirely dried out,' she said.
'I don't think it's normal,' she added: 'I really think that's crazy. It is so crazy. Look at that.'
Stunned by the findings, Tsofanye explained she plans to monitor the Big Mac lettuce on a separate piece of white paper as well as a side salad from the fast food chain.
Pouring the onions, tomatoes and lettuce onto a large white plate she said: 'I want to see what happens to this salad.
'I want to see whether the fact that this lettuce didn't go brown after a year and three weeks has to do with the lettuce or the environment this lettuce was in.'
People were left stunned by the TikToker's food experiment, with one quipping: 'This is scary.'
'Not even the germs will eat it,' a second penned, whilst another added: 'I’m never eating McDonald’s again.'
'That’s why I don’t eat McDonald's..it scares me,' a user fearfully wrote.
Others saw the humorous side to the year-old lettuce, with one joking: 'I’m probably still digesting a burger from 1995 when they were 35 cents.'
Another jibbed: 'Skip the embalmer after I die send me to McDonald's. I'll last forever!!'
