i have a plastic knife, but its getting dull, ive searched on google but no result, could anyone help me?
In prison they just rub it on the concrete
I doubt that this is a serious question. Try using an emery board.
Are we talking ceramic instead of plastic? Plastic knives are disposable and you do not sharpen them. As for ceramic, you would need a diamond sharpening stone to even come close. I've never heard of needing to sharpen a ceramic knife.
Hmmmmm interesting question.... With plastic as opposed to steel you won't be able to use anything that generates too much heat such as a grinding stone or it will melt the plastic..I would suggest going to the hardware store and getting a fine file or sharpening stone and doing this by hand, slowly. Watch a knife sharpening video on YouTube for proper angle of sharpening...the key is going to be not letting friction heat the blade. Use water during the process too for cooling. Good luck!
