Öljykivi

Öljykivi is a Finnish term that translates to "oil stone" or "whetstone." It refers to a type of abrasive stone used for sharpening knives, tools, and other blades. These stones are typically made from a fine-grained natural rock that is capable of holding a water or oil lubricant. When the blade is drawn across the stone, the abrasive particles on the surface remove microscopic amounts of metal, creating a sharp edge.

Historically, öljykivi was a common tool in Finnish households, particularly for those who relied on sharp implements for hunting, fishing, or woodworking. The specific type of stone used could vary depending on local geology, but they were generally valued for their ability to produce a fine, keen edge. The process of sharpening on an öljykivi required skill and practice to achieve optimal results.

Modern sharpening systems have introduced various artificial stones and electric sharpeners, but natural öljykivi continues to be appreciated by some for its traditional qualities and the unique feel it provides during the sharpening process. The term can also be used more broadly to refer to any sharpening stone that uses oil as a lubricant, regardless of its origin. The effectiveness of an öljykivi depends on the grit of the stone and the technique of the user.