I hardly ever bought crushed peppers or pepper flakes. With our Louisiana style cooking, I just buy the whole dried cayenne or Tabasco peppers and make my own. I've read many of ya'lls posts about specifically using the KOREAN pepper flakes for kimchi.
I just bought two large bags of whole "Thai dehydrated peppers". If I run these Thai whole dried peppers through a food processor, will they make good kimchi? Will it taste differently than the traditional kimchi?