Re: Not spicy enough :(

Emily,

Some of the peppers powders do have different heat levels. If you really want it to become hotter do as my mother does once in awhile. Grind fresh peppers with the rest of the kimchi sauce, in her case she used Serrano and Habaneros. It is especially delicious with radish kimchi. The color of the kimchi is deceiving when you do grind fresh peppers, it will be much lighter in color. My Korean grandmother also mixed fresh and dried peppers together.

Good luck.