REVOLTING footage shows alleged disgusting practices at a KFC branch including selling day-old chicken covered in “mildew and mould.”

The viral clip shows a disgruntled employee asking another colleague about the stomach-churning conditions in a kitchen at a US eaterie at the end of a shift.

5 The day-old chicken which was allegedly being packed up to be served the following day

5 The workers claimed the green beans were 'three to four" days old

Viewed more than five million pounds, the worker alleges that this particular restaurant re-uses burnt mac-and-cheese and re-freezes green beans in old water.

His colleague is heard asking: “'So you mean to tell me, the same stuff you have in those cans all day, you put in the freezer and sell it to people tomorrow?.

He replies: “I don't know why we do it. It's cross-contaminated.”

The shocking clip begins with the young woman saying “So what do you want to the world to know about KFC?”

5 The shocking clip showed what the workers claimed was burnt mac-and-cheese being packaged up for next day's service

5 The KFC worker who lifted the lid on the branch's disgusting practices

5 The female colleague filmed the shocking clip allegedly showing 'cross-contaminated' food

The male colleague also shows dry-looking day-old chicken which was cooked at lunch time being stored away to be served to customers the next day.

The workers claim the meat will be “covered in mildew and mould.”

The young man is also seen putting green beans into cloudy water while claiming the vegetables have “been here for three to four days.”

It is not clear when or where in the US the footage was filmed but the clip was posted onto YouTube in recent weeks.

Speaking with The Sun Online, a KFC spokesperson said the footage was "many years old" and that "the actions of those former employees was unacceptable.”

The spokesperson said: "This video was filmed many years ago and does not reflect our standards or food handling procedures.

“It unfortunately resurfaces online from time to time, often tagged as various locations inaccurately.

"The actions of those former employees was unacceptable.”

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