Problem to be solved: to provide a method for inhibiting odor production, which can suppress odor generation from causing bacteria causing odor without sterilizing microorganisms causing odor.The following is a method for inhibiting odor production in which the components, water, and microorganisms are brought into contact with each other to suppress the amount of odor substances generated by the microorganism(a) a method for inhibiting odor formation in the composition of the composition containing the component and the water, the logd of the component (a) calculated in the formula (1) below - 1.5 and above 1.5.Component: organic carboxylic acid or salt thereofLogd = ClogP - log [1 + 10 (pH PKA)] equation (1)In equation (1), ClogP is the calculated logarithmic p value of the water / octanol partition coefficient in the acid type state of the component (a), the pH is the pH of the water containing the component (a), and PKA is the pKa of the component (a). ]No selection【課題】臭いの原因となる微生物を殺菌することなく、臭いの原因菌からの臭い生成を抑制できる、臭い生成抑制方法を提供する。【解決手段】下記(a)成分、水及び微生物を接触させ、前記微生物が生成する臭い物質の量を抑制する、臭い生成抑制方法であって、 (a)成分及び水を含む組成物のpHにおける、下記式(1)で算出される前記(a)成分のlogDが-1.5以上1.5以下である、臭い生成抑制方法。(a)成分:有機カルボン酸又はその塩logD=ClogP-log[1+10(pH-pKa)] 式(1)[式(1)中、ClogPは(a)成分の酸型の状態での水/オクタノール分配係数の対数値の計算logP値であり、pHは(a)成分を含む水のpHであり、pKaは(a)成分のpKaである。]【選択図】なし