Either parent or even the caregiver can feed the baby anytime.
 

Since bottle feed milk digests slowly, the frequency is less and baby won't need you for a longer time gap.
 

Bottle feed baby's mothers are allowed to eat anything and any quantity. There is no limiation on any particular diet or drink.

You need to buy bottles, nipples and the formula powder. Out of these formula power is a regular buying process wheras bottles and nipples are required to be repurchased when the old one goes bad.
 

The preparation process is time consuming. You need to prepare bottle with sterile water. Bottle and nipple should be sterilized before first use and should be washed properly before every use. As uncleaned bottles and nipples may transit bacteria.
 

Powdered milk lacks in antibodies that fights against diseases. They qould be having sufficient vitamins and minerals but doesn't provide protection against infection.
 

Formula feed babies have more gas and constipation problems