A Great Dunmow man got a surprise in his Tesco finest pack of four granola squares.
Roger Wolfendale found a metal object in one last night (Wednesday). On closer examination it turned out to be a gold filling. The filling is about 1cm across.
He has raised the issue with Tesco and the Dunmow store's bakery manager today said they will investigate.
Roger said: "I googled how much a gold filling is worth - it's about £50. It's perhaps about 130 granola bars!"
He added: "I feel sorry for the person who lost their gold filling."
He said the store told him the bars are not made in the store.
We have contacted Tesco for comment.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here