The lid acts as a switch; with just a single touch the grinder will start to pulse through the contents and will stop only when you lift your hand from the lid. Additionally, this makes the grinder safer to use as the blade will only start rotating when the lid is on the cup and being pressed downwards. Features: FAST, EFFICIENT AND VERSATILE, EASY TO USE - Multi-function grain mill is perfect for daily use and can grind various DRIED/DEHYDRATED materials, including beans, peppers, chili, coffee beans, nuts, grains, cereals, spices, herbs, seasonings and so on. Just put your ingredients in the bowl with the blade, cover with the lid and rest the control above HIGH-QUALITY STAINLESS-STEEL JAR & BLADES - The powerful 200W motor and the strong and durable stainless-steel jar & blades provide high quality and greater endurance with grinding chamber lower heat buildup to preserve more flavor and aroma. Perfect for grinding coffee beans, spices, dried fruits, onions, garlic, ginger, chillies