COFFEE DRIP DEVICE WHICH SUPPLIES WATER ON BASIS OF SIZE OF MUFFIN REFERRING TO PUFFED FORM OF WET COFFEE POWDER

原文（中文）

A coffee drip device is disclosed. The coffee drip device includes a water supplier configured to supply water to a dripper in which crushed coffee beans are received, an actuator configured to adjust a position of at least a portion of the water supplier such that a water supply point of the water supplier is changed, a camera configured to take a picture of at least a portion of coffee beans received in the dripper, and a controller. The controller performs a muffin forming step of forming a muffin composed of coffee beans having moisture and bubbles by supplying water to the dripper through the water supplier. Further, the controller recognizes a size of the muffin photographed through the camera. In the muffin forming step, the controller supplies water to the dripper through the water supplier while spirally changing the water supply point of the water supplier outward from a center through the actuator until the size of the muffin reaches a maximum water supply radius set in advance for the muffin forming step.