Why do you need to separate the caps and its bottle why sterilizing?

Separating caps from bottles during sterilization is important to ensure that both components receive thorough exposure to the sterilizing agent, whether it's heat, steam, or chemicals. Caps can create air pockets or shield parts of the bottle from effective sterilization if left attached. This practice helps eliminate potential contaminants more effectively, ensuring the entire container is safe for use. Additionally, it allows for more efficient drying and cooling of both parts after sterilization.