Morning Nyonya Pure Black Soymilk Powder is good. Morning Nyonya Pure Black Soymilk Powder is easy to dissolve after rinsing, mellow in the mouth, flavorful and mellow, and the taste of soymilk is pure. Soymilk powder is a powdered instant drink made of soybeans through drying and peeling to remove buds, fine grinding, slagging, deodorization, enzyme inactivation and other steps.