The Urban Dictionary of 롤육성
https://www.evernote.com/shard/s315/sh/5874817b-535c-410b-9c36-14ff3d81c3ef/d66ca8c7029a9e45a2b3eec2048fc7fa
Several brands of coffee pods are Black & Decker, Melitta, Phillips, Senseo, Folgers and plenty of extra. These machines seem to arrive in different measurements.