Since aburakasu is prepared by using waste obtained after taking meat out of livestock animals, it was conventionally produced and consumed secretly only among burakumin (modern-day descendants of Japan's feudal outcast groups), many of whom were engaged in the butchery trade.
食肉を採取した後の廃棄物を原料として作られるため、従来は屠畜業に携わる者の多い被差別部落民の間でのみ密かに生産・消費されてきた。