Proper care and maintenance are an important part of keeping your TRUE knives working as hard as you do. It is important to regularly inspect your knife and before each use to ensure that everything is working properly and that there is minimal wear and tear. We recommend cleaning your knife after every use with water and a mild soap. Avoid harsh soaps and abrasives to preserve the blade coatings and ensure the knife is rinsed and dried thoroughly and that no water is trapped in the moving parts. Once it’s completely dry, a small amount of stable oil or lubricant can be used to keep the knife working as intended. After lubricating, move the knife open and closed several times to help spread the lubricant evenly.