Pour water into perilla seeds in a generous bowl. Perilla seeds float up and foreign substances (stone, sand) sink to the bottom.

Pour the perilla seeds slowly into the strainer. And remove the remaining debris. Repeat this process 2-3 times.

Wash the perilla seeds in the tray cleanly. Rinse it slowly under running water and remove the water as much as possible

Preheat the frying pan over high heat and stir-fry perilla seeds.

Keep frying perilla seeds. Stir-fry it a little bit, turn it down to medium-low heat, and stir-fry it until it makes a tartar sound. After rubbing the sesame seeds, if the skin is peeled well, it's stir-fried well

Grind the cooled perilla seeds using a blender or mortar. If you want fine perilla powder, sift it once or twice to complete the perilla powder. :)