Rob Humble said his suspicions were aroused after spotting perfectly rounded holes in the breast of the hot meat.
He took one bite of the chicken at lunchtime on Wednesday after buying it from the Glendale store, west of Newcastle in NSW, earlier that day.
Mr Humble said that he peeled back the skin of the chicken and noticed several holes, some of which appeared to go all the way through the flesh down to the ribcage.
He says he also spotted something which he thought was the dead body of a worm which had burrowed its way through the meat.
Mr Humble said he stopped eating instantly and began feeling sick, which he told Yahoo News Australia was likely due to the disturbing thought of consuming something contaminated by an unpleasant intruder.
He said he was left feeling “disgusted” after the experience, and vowed to never purchase cooked chicken again.
In photos of the product shared online, the round holes were quite clearly visible in several parts of the chicken.
A figure which Mr Humble believed was the worm also featured in the images of the $10 hot roast chicken, which had a best before date of September 4.
A Coles spokesperson confirmed the retailer had been in touch with the customer and was investigating the incident.
“Coles takes the quality of all our products seriously. We have spoken to the customer and the store is investigating the matter,” they told Yahoo News Australia.
“As always we encourage customers to return any item they’re not 100% happy with to their nearest store for a full refund or replacement.”
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