JLPT N1 Vocabulary 製法 (seihou) manufacturing method, recipe, formula JLPT N1 Learning Done Flashcards Recall mode Meaning 製法 (せいほう, seihou) is a JLPT N1 vocabulary word meaning “manufacturing method, recipe, formula”. Kanji in this word 製 made in... 法 method ← Previous感無量 All N1 vocabulary Next →過密