Reply To: What is an acceptable gochugaru substitution?

My neighbor uses red jalapeño peppers for her kimchi. She blends it up with ginger and garlic until it’s a thick sauce. She also always shares it with me and it tastes just like the red pepper flakes to me. You can try doing that and see how you like it. I used powdered dry chilis from thailand before on kimchi but it does not taste the same and not the same ration as korean pepper flakes. I suggest you experiment with what works for you ;-)