Saturday british media reported that students in the United Kingdom are using orange juice to get fake COVID-19 positive test results to get two weeks off from school.

The false positive from a COVID-19 lateral flow test is not a result of the juice containing the virus, but rather, it appears to be linked to the acidity of the juice, which essentially breaks the test.

A rapid flow test is usually self-taken and shows results after 30 minutes.

Students took the sample from inside the mouth or nose using a swab which is then soaked in a liquid then squeezed onto a test strip.

Similar false positives have reportedly been seen when using other foods and drinks such as ketchup and Coca-Cola - all highly acidic food items, according to the report.

A UK science teacher told local media that students “say it’s a great way to get two weeks off school.”

They also reported the hack going viral on TikTok where users were testing out different liquids to see if it works with other items.

There have been more than 6.5 million views of videos uploaded to the social media platform under the search term #fakecovidtest,” reported The Guardian.

However, since then, Al-Arabiya discovered that the video platform had since then removed all videos under the hashtag.

Upon searching the tag, a message saying "This phrase may be associated with behavior or content that violates our guidelines," appeared.

In turn, a biostatistics professor at Birmingham University, Jon Deeks, criticized the 'reckless' practice.

He noted that “False positives affect not just that child but their family and their bubble at school," calling the orange juice method "selfish."

"There are less harmful ways to fake a day off school,” Deeks said.