| 摘要 |
PURPOSE:To make flowing in and flowing out of hot water into a coffee pack smoother by providing an air outlet for coming in and going out of air on the coffee pack to make coming in and going out of air to and from the coffee pack free. CONSTITUTION:For the coffee pack, a solid coffee pack is formed with a filter, and an air outlet (2) for coming in and going out of air is provided at an upper part of the pack, and the coffee pack has a structure for which a coffee powder is filled in the pack, and the pack is sealed. The flowing in quantity of hot water into the coffee pack in the hot water is ensured, and the extraction efficiency of coffee is increased by forming the coffee pack three-dimensionally by providing folded parts (11) on the right and left sides of the coffee pack. |
