To make GoChut GaRu (고춧가루), remove the stems of red hot peppers and open them to get rid of the seeds inside. Wipe them dry and then grind them to make powder. Depending on the purpose, the coarseness of the crushed flakes is different. You can use real fine hot pepper powder for a spice, or red pepper paste. Medium-fine powder can be used for napa kimchi or radish kimchi. Course powder is used for summer kimchi, 열무김치. Make sure the powder is well sealed to lock in the nutrients. Two big nutrients of hot peppers are vitamins A and B.