The invention relates to the use of 2-amino-1,3-propanediol and/or substituted 2-amino-1,3-propanediol for reducing off-odors that are caused by ill-smelling ketones and/or aldehydes. Said off-odors are reduced by the addition of 2-amino-1,3-propanediol and/or substituted 2-amino-1,3-propanediol, e.g. incorporated in detergents.