公开(公告)号：US20210298515A1

公开(公告)日：2021-09-30

申请号：US17201556

申请日：2021-03-15

Applicant: LG Electronics Inc.

Inventor： Wonkyu LEE ,  Jungwon LEE ,  Seoyoun KIM ,  Jongkwan CHOI

IPC: A47J31/053 ,  A47J31/00 ,  A47J31/057 ,  A47J31/42

Abstract: A coffee extraction apparatus includes: a grinder grinding whole beans into coffee powder having a preset size or less and discharging the coffee powder, a grinder inlet defined at a first side of the grinder to introduce the whole beans to the grinder, a grinder outlet defined at a second side of the grinder and discharging the coffee powder, and a first extractor. The first extractor includes: a receiver inlet that faces the grinder and that receives the discharged coffee powder, a filter part receiving the coffee powder through the receiver inlet and extracting coffee liquid by rotating the coffee powder with water of a first temperature, the first temperature being equal to or lower than 25 degrees Celsius, and a receiver that receives the water of the first temperature and that is configured to store the water of the first temperature or the extracted coffee liquid.