The witch bottle was discovered in a pit beneath a back room on the site of the Turk’s Head Inn at Tipping Street car park in Stafford.
The vessel is a mid to late 17th-century Bellarmine jug which would have been filled with the likes of nail clippings, hair, bellybutton fluff, pins and iron nails.
The period was full of superstition and they were buried near or under buildings to ward off witches or evil spirits. Oxford Archaeology which is undertaking the dig will analyse the contents of the bottle to see what it contains.
Andrew Norton, project manager from Oxford Archaeology, said: "This is a very interesting find. People were very superstitious during this period and would put items which came from themselves such as nail clippings and hair into a bottle to protect them from witches and evil spirits.
"This would then be buried at the front or back door of a building or placed in a chimney to ward off witches or evil spirits. We are going to analyse what is inside the bottle to see what it contains."