1. Look at the color
Good quality coix seeds are generally white or off-white in color, with a uniform hue and a slightly powdery texture, making them very attractive.
2. Observe the appearance
Check if the coix seeds have a luster. Shiny seeds are plump and well-matured, meaning they have the highest nutritional value.
3. Smell the aroma
When selecting coix seeds, be sure to smell them. This is because some vendors bleach older, stale seeds to make their surface color white again, but the aroma is hard to change. If the seeds have been stored for too long, their natural sweetness will be greatly reduced, and some may even have a musty smell.
4. Taste the coix seeds
High-quality coix seeds taste sweet or slightly sweet with a light and delicate texture.