Patrick McMullen said he cut up a block of  tasty cheese on Wednesday but, when he popped the cheese into his  mouth, he bit into something hard.

“It felt like my tooth had broken. I spat it out and it was a safety pin. I could easily have swallowed it, but I didn't,” he said.

Mr McMullen said he immediately contacted Woolworths to alert them about the safety pin.

“I was really concerned about whether this was an isolated incident, possible sabotage, or a breakdown in the quality of manufacture.

“I was really concerned that this stuff was still on shelves all around  the country,” he said.

“Safety is my 100 per cent motivation. I told Woolworths that the last thing I wanted was to hear on the news that someone had choked on a foreign object in a block of cheese.

“As unlikely as that may be, I felt it was my moral duty to have Woolworths withdraw these from the shelves until they can guarantee the absolute integrity of  the product.”

A Woolworths spokesman said the company took such safety issues very  seriously.

“We immediately withdrew the product from sale and instigated an investigation into the incident including with our supplier,” the spokesman said.

“The investigation is ongoing and we continue to speak with the customer.”

Mr McMullen said Woolworths staff collected the cheese and safety pin from  his home on Thursday afternoon and sent them to Melbourne, where  they were being tested.

"I've been shopping at Woolworths all my life and I'm nearly 60,” he said.

“If there's not a satisfactory outcome, it will affect where I shop.

Source: Central Western Daily