Coca-Cola cans were reportedly found contaminated with human waste, the BBC reports.
Police are investigating the incident which began in a factory in Northern Ireland. The machines were clogged at one point last week.
Coca-Cola said this was an isolated incident and none of the affected cans made it to the market, as they were all impounded.
We are treating this matter extremely seriously and are conducting a thorough investigation ...
A Coca-Cola spokesperson said the company was aware of the incident involving cans in Knockmore Hill in Ireland.
Ireland's Food Standards Agency said there was "no evidence to suggest" any of the Coke cans hit the market. The cans arrived at the Ireland plant without tops and would normally have been filled before being sold.
This news brought some Pepsi fans out of the woodwork.
But some Coke loyalists were unfazed.