This is a certified organic food grade mineral oil for knives. It can be used to lubricate or coat the knife after cleaning, for protection against rust. Mineral oil is a stable oil, does not go rancid. The oil is clear and it will not discolor or stain your knives.
Each bottle contains 60ml of oil, the cap is child-safe and the nozzle allows you to apply a perfect droplet every time. Only a few drops are needed every time, this bottle will last you many years.
Instruction - I would apply one drop directly on each side of the blade and spread the oil with a brush or fingers. Then wipe off excess.