However, as sake at that time was crude home-brewed sake, "kasu" (lees) may not have been strained lees but may have been precipitates that accumulated at the bottom of the sake container.
なお当時の酒はどぶろくであったため、粕とは搾り粕ではなく酒の底に溜まる沈殿物のことであったようである。