When sharpening your knives, it's common to use sharpening oil to lubricate the sharpening stone and remove debris from the blade. However, after sharpening, it's important to wipe off any excess oil and not leave it in heavy amounts on the knife. Some popular options for sharpening oils include mineral oil, honing oil, vegetable oil, and synthetic oil.
Mineral oil is affordable and easy to find, while honing oil is specifically formulated for sharpening knives and provides extra lubrication. Vegetable oil is a natural and non-toxic option, although it may not offer as much lubrication. Synthetic oils are more expensive but are designed to provide superior lubrication and are often used in industrial settings. By properly caring for your knives and using the right oil, you can keep them looking professional and performing at their best.