Singsong's hot pepper powder is made out of carefully selected red chili peppers so it could make a great quality of pepper powder for Kimchi. To find the right pepper powder for Kimchi, it takes much deliberation to consider bright red color and decent spicy level. The resealable package allows you a longer period of time to keep the pepper powder fresh and clean, also prevent the powder from turning into little lumps. Also the opaque package keep the pepper powder from being turned brown by UV light. Once opened, we recommend to keep the hot pepper powder in the freezer to keep it fresher.