To provide a baby bottle disinfecting apparatus capable of sterilizing a baby bottle using a coloring agent made of an organic resin without adversely affecting a design.A baby bottle using a coloring agent made of an organic resin and a silicon case capable of boiling and disinfecting by setting a baby bottle are provided. At the time of boiling and disinfecting, putting a baby bottle in a silicone case and keeping the temperature at which the baby bottle contacts is kept below a certain level, the influence of the organic resin on the coloring agent can be suppressed.(FIG.【課題】有機樹脂製の着色料を用いた哺乳瓶を、図案に悪影響を与えることなく殺菌できる哺乳瓶消毒器具を提供する。【解決手段】有機樹脂製の着色料を用いた哺乳瓶と、哺乳瓶をセットして煮沸消毒可能なシリコンケースとを備える。煮沸消毒時に、哺乳瓶をシリコンケースに入れ、哺乳瓶に触れる温度を一定以下にすることで、有機樹脂の着色料への影響を抑えることができる。【選択図】図12