What is it?

I am going to double ask this question because the people who are confirmed as my friends haven't been able to give me an answer, and I'm hoping maybe the greater Google searchable virtual inter connection of everyone can help me out.

Clues:
- they are Korean
- it is the patriarch who is working on this project.
- its a dried plant of some kind, like tea leaves
- I didn't notice anything that used to be growing (outside) and is now gone - ie they grew a lot of oregano and now they are drying it.
- its one consistency; no twigs, blooms, buds, and its very fine.