Why incubate McCartney bottle and tube that contain transfer from McCartney bottle?

Incubating McCartney bottles and tubes that contain transfer from a McCartney bottle allows for the growth and observation of microbial cultures under controlled conditions. This process promotes the proliferation of bacteria or other microorganisms, enabling researchers to study their characteristics, behaviors, and responses to various stimuli. Additionally, incubation ensures that the samples are maintained at optimal temperatures for growth, which is crucial for accurate experimental results.