On average you need a minimum of 4 cans of the size 30 oz or 35 oz cans of formula per month.
It's best to have more than you need but in most cases 4 large cans of baby formula is enough per month.
Most babies are satisfied with 3 to 4 ounces (90–120 mL) per feeding during the first month and increase that amount by 1 ounce (30 mL) per month until they reach a maximum of about 7 to 8 ounces (210–240 mL).
If your baby consistently seems to want more or less than this, discuss it with your pediatrician.
Enfamil Formula is the brand of formula that pediatricians recommend for babies.
Enfamil formula is recommended by pediatricians for many reasons.
The Enfamil Formula offers 15 different varieties categorized by the developmental age of a child, such as newborns, infants, and toddlers.
These formulas provide the appropriate nutrition for each stage of development.
Newborn Formula and Infant Formula are essentially the same thing but the newborn formula has a slightly different formula.
The “Infant” has 60 IU of vitamin D and the “Newborn” has 75 IU.
This difference is practically nothing – both are more than enough vitamin D for a new baby.
Powdered baby formula is good for up to a month or 30 days after opening.
If you haven't used the baby formula within 30 days or a month it should be thrown out.
However that shouldn't be much of a problem if you're feeding your baby as babies will use a lot of formula and you'll likely use the opened powdered baby formula well within a month.
Within 30 Days Of Opening.
Always use baby formula within 30 days of opening.
Unlike the main expiration date, this reasoning has less to do with the breakdown of nutrition and more to do with the risk of bacteria.
A prepared (but untouched) bottle of formula can be stored in the back of the fridge for 24 hours.
Opened containers of ready-to-feed and liquid concentrate formulas are good for 48 hours.
Powdered formula should be used within one month of opening the can or tub.
How do you know if baby formula has gone bad?
When the formula starts to go bad, you should notice: The smell will have an off aroma. Clumping.
Separation of ingredients in the formula.
The American Academy of Pediatrics (AAP) says that formula out for longer than 1 hour at room temperature should be thrown away.
They also state that formula that has been out for 1 hour or less can safely be stored in the refrigerator.