We may receive a commission on purchases made from links. When you use any cutting tool, such as a knife or scissors, the blade will grow dull over time and need to be sharpened. A blender, too, makes ...

Claire is Lifehacker's Senior Food Editor. She has a B.S. in chemistry, a decade of food journalism experience, and a deep love for mayonnaise and MSG. I don’t use my standard blender all that much, ...