| 摘要 |
PURPOSE: To enable hot water to be poured directly into a dripper pack and quickly extract therefrom by forming a bag of a waterproof insulated surface material and a filter, filling the bag with coffee powder and sealing an upper port temporarily to provide a fold and upward extended fold down part around the upper port. CONSTITUTION: Discharge ports 6 for discharging liquid extracted from coffee powder in a bag 5 to the outside of the bag 5 are provided in the lower part of a waterproof insulating surface 2 on the side wall of the bag 5. The discharge port 6 is closed with a filter 3, and the upper port 4 of the bag 5 filter with coffee powder is temporarily sealed. A fold back part 14 is provided to extend further upward from the upper port 4. The fold back part 14 having a fold 13 at the root is folded back to the outside and doubled to increase the strength of the port part form. Since hot water is poured directly into a dripper pack, the extraction is quickened, and since the bag 5 itself is rigid, the upper port 4 can be stably opened when hot water is poured. |
