Veganbaking.net - The Hows and Whys of Vegan Baking
Veganbaking.net - The Hows and Whys of Vegan Baking
  
Chopping chocolate with a serrated knife such as a bread knife is considerably easier than chopping with a sharp chef or santoku knife. Why? The serrated knife edge creates cracks in the chocolate that enables separation whereas the sharp knife cuts through which requires considerably more effort.