Therefore, in this article "Warming Japanese sake" if there is no special explanation, description is made with Japanese sake without distilled alcohol added as a subject (in other words, sake with distilled alcohol is not included as a subject), and the description will advance by treating Japanese sake as a kind of brewage.
よって本節『日本酒と燗』では、特別にことわりが無い場合、醸造アルコールの添加を行っていない日本酒を対象として（つまりアル添酒を対象とせずに）話を進めるものとし、日本酒は醸造酒の1種であるとして話を進める。