Which type of coffee grinder is operated manually?

The manual coffee grinder is specifically designed to be operated by hand, requiring the user to physically turn a crank or handle to grind the coffee beans. This method allows for more control over the grind size and can produce a coarser texture that some coffee enthusiasts prefer for certain brewing methods. Additionally, manual grinders do not require electricity, making them portable and useful in settings where power sources might be limited.

In the context of coffee preparation, manual grinders are often favored for their simplicity and ability to offer a more traditional coffee grinding experience. Users can adjust the grind size for different brewing techniques, and many find the process satisfying.

On the other hand, automatic and electric grinders operate by using a motor to grind the beans, while digital grinders often incorporate features that allow for precise adjustments and even pre-programmed settings, making them less hands-on than manual options.