I was concerned about how to lubricate 4 tools from the company, given that they may come into contact with food. It is the best product. A small bottle is more than enough for years. I opened and closed all the blades in hot water (for stubborn dirt, I added 1-2 drops of dish soap). I let the tools dry well. And then, with the smallest and thinnest paintbrush, I applied the lubricant to all the points where the tools open and close. They are now like new! And odorless! If you have a tool from the company, it is truly the best you can put on them.