Best food processors of 2020 reviewed, tested and compared. How does a food processor differ from a blender in making nutbutters, etc.? What does a food processor do? It helps you make many different dishes from scratch quickly and does the heavy labour of making quick homemade nutbutter, hummus, pesto, grating several potatoes in a second, shredding carrots, slicing yams, slicing potatoes for scalloped potatoes, mixing dough, making energy balls, grinding veggies and legumes to make veggie burgers, and much more. Here are comparisons and reviews based on years of cooking experience with food processors.