Packs of Maltesers and Revels were recalled after some customers found small pieces of rubber in the sweets.
Manufacturer Mars said “an isolated incident” on the production line at its factory in Slough, Berkshire, was to blame for the contamination.
A spokeswoman said: ‘Five consumers contacted us about the problem, which resulted from an isolated maintenance incident on one of the production lines, which was identified and repaired.’
The affected batches are: Milk Chocolate Maltesers in bags, pouches, boxes, PickNMix and pots with best before dates between 16.12.07 and 06.01.08 and Revels in bags, pouches and pots with best before dates between 16.12.07 and 13.01.08.
Customers were asked to return packs with these best before dates for a full refund including postage.
The spokeswoman added: ‘Maltesers and Revels are committed to manufacturing products of the highest safety and quality and apologise for any inconvenience caused.’
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