Do you have to use the formula within one month?

In this short article, we will provide an answer to the question “do you have to use formula within one month?” and the proper way of making the formula.

Do you have to use the formula within one month?

It is recommended that the overwhelming majority of infant formulas be eaten within a month after being opened (check the label). Make a note of the date on the container’s lid when you first open it to make it easier to recall the information later on.

Never use a formula beyond the “Use By” date printed on the bottle.

What is required is as follows:

  • Examine the expiration dates to see if any are approaching.
  • Check the expiration dates on the packaging of the formula before serving. Dents in the cans or containers should be checked.
  • Maintain a clean atmosphere and only use sterile bottles and other items to avoid cross-contamination.
  • Handle baby bottles and formula only after thoroughly washing your hands and working in a clean atmosphere. The bottles, as well as any related components, should be sterilized before use if this is the first time you’ll be using them. Boil the ingredients for 5 minutes, then remove from the heat and put aside to cool completely.
  • Otherwise, thoroughly wash the bottles, bottle liners, and nipples in hot, soapy water before using them. You may clean any hard-to-reach places using a bottlebrush designed specifically for this purpose.

Heating The Water

It is important to remember that powdered infant formula is not sterile; it may contain rare but dangerous cronobacter bacteria, which may cause death. As a consequence, several organizations, including the World Health Organization (WHO), advise against the use of powdered formula in infants less than one month of age as a result of these findings. Sterile liquid (concentrate or ready-to-feed) is the safest choice when in doubt.

To ensure that powdered formula is properly produced, follow the procedures listed below:

Bring a pot of water to a boil safely and responsibly (this can be bottled water or tap water if contaminant levels are low). Boil the water in a big saucepan over high heat until it comes to a boil.

Pour the water into the feeding container that will be used to feed the infant slowly and deliberately.

Allow the water to cool to no more than 158 degrees Fahrenheit before using it (70 degrees C). Allow about ten minutes for the water in the feeding container to chill. Chilling time should be limited to 30 minutes at the most. To prevent the formula from clumping and causing harm to heat-sensitive components such as Vitamin C, the water should be kept at a cool temperature.

For additional information, see the World Health Organization’s guide to formula preparation or the Centers for Disease Control and Prevention’s guidelines.

Follow the instructions on the package to mix the baby formula and water until it’s smooth.

Because not all formulas include the same amount of components, it is important to double-check and adhere to the water-to-formula ratio stated on the package.

Typically, water is added first, followed by the powdered or concentrated liquid solution, which is then mixed according to the manufacturer’s instructions. Consult the instructions provided by the manufacturer.

The water should be measured using a measuring cup, and the powder ingredients should be measured with a scoop.

Containers containing infant formula or bottled water should be sealed immediately.

Immediate cooling is required after mixing the formula with water, either by running it under cold tap water or placing it in an ice or cold water basin.

To find out how hot the formula is, place it on the inside of your wrist and press it down.

Maintain a safe storage location for the produced formula.

It is feasible to prepare a day’s worth of bottles ahead of time and store them in the refrigerator.

Before utilizing the prepared combination, place it in the refrigerator for up to 24 hours. Contrary to common opinion, the prepared formula should not be frozen once it has been made.

It is not recommended to leave prepared formula out for more than two hours if it has been refrigerated.

The formula must be eaten within an hour of the baby starting to drink it. After one hour, any food that has not been consumed must be thrown.

Is it possible to use a formula that has expired as a substitute?

If you made the mistake of purchasing expired baby formula, you may be able to exchange it for a fresh box at your local store. The policy differs depending on the store and the date of purchase, but the majority of them should enable you to return or replace an expired formula as long as it is unopened and you can prove that it was expired at the time of purchase.


In this short article, we provided an answer to the question “do you have to use formula within one month?” and the proper way of making the formula.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.