Sometimes, an unfamiliar object can spark an unexpected mystery, especially when its original purpose is no longer obvious. One unusual steel kitchen tool recently caught people’s attention online, but the answer turned out to be much simpler than expected: it was a traditional hand-operated meat mincer, or meat grinder.

Before electric appliances became common, these machines were useful household tools. Meat was placed into the top and pushed through a metal plate with small holes as a handle was turned, producing strands of ground meat for cooking. Depending on the design and attachments, some models could also process fish, vegetables, and other foods.

The history of the meat grinder dates back to the 19th century, with German inventor Karl Drais commonly credited with developing an early version. Over time, the design evolved into modern electric machines that can process food more quickly and include attachments for tasks such as making sausages. What may look like a mysterious piece of steel today was once a familiar kitchen appliance—and a reminder of how everyday technology has changed over time.