While not a mainstream term, "Mazome Soap de Aimashou" began appearing on Japanese aesthetic forums, independent soap makers’ blogs, and small-batch skincare Instagram accounts circa 2018–2020. It was popularized by a now-viral tweet from a Kyoto-based aromatherapist who wrote:
In this culinary journey, we're going to explore the delightful world of Japanese cuisine, focusing on a unique and perhaps lesser-known ingredient: mazome. Mazome, or more commonly spelled as "mazuma," seems to be a term that could relate to a specific type of rice or ingredient used in Japanese cooking, but let's assume it's a unique component for a special soup.