A cylinder, first thought to be possibly an unexploded device, was found on the beach at the Point of Nesbister, Whiteness, on Monday afternoon.
The area surrounding the device was cordoned off for public safety, which the public were requested to keep clear of.
However, after viewing photographs sent to them a bomb disposal team stated they were content that the cylinder was not ordnance.
The police said later that the fencing had been removed and it was now safe for the public to be in the area.
It comes a week after Meal Beach in Burra was cordoned off after a toxic flare washed ashore. The beach was re-opened to the public after the weekend after a team of experts made the “toxic” device safe and removed it.