1. kaempferia moldy: black spots or downy mold appear on the surface of kaempferia, which may be the manifestation of kaempferia moldy. This is usually caused by improper storage or humid environment.
2. Rhizoma Kaempferiae metamorphism: Black or dark brown appears on the surface of Rhizoma Kaempferiae, which may be the manifestation of Rhizoma Kaempferiae metamorphism. This may be caused by too long storage time or improper storage conditions.
3. Improper processing of Rhizoma Kaempferiae: During the processing of Rhizoma Kaempferiae, if it is not handled properly, the surface may become black. For example, the surface of Kaempferia Kaempferia Kaempferia may be blackened when metal utensils such as iron are used to contact Kaempferia Kaempferia Kaempferia during processing.
No matter what causes the black kaempferia kaempferia, it is not recommended to eat it. Because kaempferia kaempferia has certain toxicity, mildew, deterioration or improper processing may increase toxicity and cause harm to human health. It is suggested to choose fresh, moldy and odorless Rhizoma Kaempferiae to ensure food safety.