Best Knife For Chopping Chocolate . Sure, you can use a normal grater to get the job done, but a microplane can make the process of grating that much easier. I would suggest using a chinese cleaver or a 10 german style chef's knife for chocolate. What you need A knife chopping board and chocolate is all … Flickr from www.flickr.com I would suggest using a chinese cleaver or a 10 german style chef's knife for chocolate. All you'll need are a couple of damp paper towels, a. Lift the chocolate from the pan and peel off paper.