How long can I keep formula milk in the fridge?
If you are planning to store milk in the refrigerator, it is important to know how long you can keep it. Milk does not spoil easily but if stored improperly, it could go bad very quickly. It is recommended that you refrigerate milk within two hours after opening. Once opened, you can keep it in the refrigerator for seven days. However, if you are planning to freeze milk, it should be frozen immediately after opening. Frozen milk can last for about six months.
In this brief guide, we are going to answer the question “how long can I keep formula milk in the fridge” with an in-depth analysis of the shelf life of formula milk. Moreover, we are going to discuss tips for properly storing formula milk.
So, without much ado, let’s dive in and figure out more about it.
How long can I keep formula milk in the fridge?

Once you have prepared formula milk, it lasts for about a day (24 hours) if stored in an air-tight bottle or container in the fridge at or below 40 degrees Fahrenheit.
Moreover, the shelf life of a partially consumed bottle of formula milk is only an hour. A bottle of prepared formula milk lasts for as long as an hour once the feeding gets started and you should discard it afterward. So, if you have made the formula in a bottle and the baby has just drunk half of it and does not want to gulp in the whole of the formula then it is better to discard it.
As formula milk is a highly perishable commodity and bacteria can ruin it. So, the used bottle of formula already has some bacteria introduced in it (saliva of the baby at the bottle nipple) therefore it is better to discard it.
Moreover, when it comes to open, ready-made or liquid concentrates, they last for about 48 hours when stored properly in the fridge at or below 40 degrees Fahrenheit.
In the case of unmixed powdered formula milk, once you have opened the unmixed formula milk, it lasts for about a month if stored properly.
How long can formula milk be left out?

Prepared formula milk lasts for about 2 hours when left out at room temperature.
You should discard the prepared formula milk that has been left open for more than 2 hours as bacterial growth takes place at a faster pace between the temperature of 40- and 140 degrees Fahrenheit, therefore there are greater chances of the prepared formula milk being already contaminated with bacteria when left out for more than 2 hours.
Moreover, if the temperature of the surroundings is about 90 degrees Fahrenheit, then the process of spoilage takes place at a faster pace and it is recommended to discard prepared formula milk that is left out in the open for more than an hour at 90 degrees Fahrenheit.
On the other hand, when it comes to unopened unmixed formula milk, it is shelf-stable and lasts for more than a year if stored in a cool, dry, and dark corner of the pantry away from direct sunlight and heat.
It is worth mentioning that the figures mentioned above are the estimated shelf life of prepared formula milk.
What is the optimum temperature to store prepared formula milk?

You should always store your prepared formula milk at 40 degrees Fahrenheit or below in the fridge. Bacterial growth takes place at a faster pace between the temperature of 40- and 140 degrees Fahrenheit, therefore it is always advised to store prepared formula milk at a lower temperature to preserve its freshness and quality for a long time.
Is formula milk safe to use after the use-by date?
It is recommended by USDA to use the formula milk within the use-by date written on it. You should neither buy nor use formula milk that is past the use-by date written on it.
Tips to properly store prepared formula milk

Prepared formula milk can pick up odors therefore it should be stored in an air-tight container or bottle in the fridge. Moreover, it should be stored away from strong-smelling food items like garlic, onion, etc.
It is better to store prepared formula milk on a shelf of the refrigerator rather than the door as there is a lot of temperature fluctuation at the door of the fridge and that can harm the quality of prepared formula milk.
Prepared formula milk should be stored on the lowest shelf of the refrigerator as it is the coldest part of the refrigerator and has a temperature between 38 °F to 40 °F.
It is best to use the refrigerated ready-to-feed infant formula or the concentrated formula within 48 hours.
An unopened unmixed formula should be kept in a cool, dry, and dark place away from direct sunlight. Thus, you can store your unopened package of formula in a cool and dry corner of your pantry.
Can you believe that some parents store their baby’s food in the refrigerator for months at a time?
Is it safe to leave baby food out for such a long period of time?
Formula milk has become a staple part of our lives.
The convenience of having ready-to-use bottles makes it easier for us to feed our babies.
And since it contains nutrients that are lacking in breastmilk, it helps them develop properly.
But does storing formula milk in the fridge for too long affect its quality?
According to experts, it’s perfectly fine to keep it in the fridge for up to six months.
In fact, it won�t spoil even after 12 months
How long can I keep formula milk in the fridge?
It depends on how old the milk is. Milk can last about 2 weeks if stored properly. It is recommended that you store milk in the refrigerator. Store milk in the original carton in the back of the refrigerator. Do not open the carton until you are ready to use the milk. Once you open the carton, the milk will begin to spoil.
How long can formula milk be left out?
If you leave your baby’s bottle out for longer periods of time, it could lead to diarrhea. To prevent this from happening, always put your baby’s bottles away after feeding him/her. Never leave a bottle out overnight.
What is the optimum temperature to store prepared formula milk?
To ensure the safety of your baby, never let any type of milk sit out for more than two hours. This includes breastmilk and formula milk. Always refrigerate your baby’s milk immediately after preparing it. How long can I keep my baby’s bottle warm? Answer: It is recommended that babies’ bottles be warmed to body temperature 98 degrees Fahrenheit before being fed. Once the bottle is warmed, it should be placed back into the refrigerator until needed again. Do not reheat the bottle if it was previously cooled.
Is formula milk safe to use after the use-by date?
If you are using a powdered formula, follow the instructions on the label. If you are using a liquid formula, discard any unused portion within 24 hours of opening the container. Never freeze formula milk. What happens if I accidentally leave my baby’s bottle out overnight? Answer: If you forget to put your baby’s bottle away in the refrigerator, the milk will spoil. However, if you remember to put the bottle away but forget to take it out of the fridge, the milk will still remain safe to drink.
Tips to properly store prepared
Store leftovers in the refrigerator. This way, they’ll stay cold and won’t go bad. How long does cooked pasta last in the refrigerator? Answer: Pasta can be stored in the refrigerator for about 3 days. It can be frozen for up to 6 months.
What happens if baby drinks formula after 2 hours?
If you give a baby formula within two hours of birth, he/she will not get enough nutrients from breast milk. It is important to feed your baby every 2 hours. Breastfeeding helps babies develop healthy bones, teeth, muscles, skin, eyes, ears, nose, mouth, heart, lungs, stomach, intestines, liver, pancreas, spleen, thymus, thyroid gland, immune system, brain, nervous system, kidneys, bladder, blood, and sexual organs.
How long is formula good for after mixing?
You can store your baby’s formula in the refrigerator for about 5 days. After that, it needs to be discarded. It is important to discard any unused formula because it could become contaminated and harmful to your child.
Can you prepare formula ahead of time?
Yes, you can prepare formula milk in advance if you follow these steps. 1 Prepare formula milk according to the instructions on the bottle. 2 Pour into a glass jar and store in refrigerator until ready to feed. 3 Warm the milk in a saucepan over low heat. 4 Stir well and serve warm. 5 Store any remaining milk in the fridge. 6 Do not reheat milk after preparation. 7 Milk stored in the fridge will last about 10 days. 8 To extend the shelf life of milk, freeze it in ice cube trays or plastic containers. 9 Once frozen, transfer milk cubes to freezer bags and store in the freezer. 10 Thaw milk cubes before using. 11 Use within 3 months from freezing date. 12 Never refreeze thawed milk. 13 Always check labels for expiration dates. 14 For best results, use only pasteurized milk. 15 Avoid overheating milk when heating. 16 Do not boil milk.
How long can baby formula sit out before it goes bad?
Prepared formula milk is a great way to feed babies who cannot eat solid foods. It is usually stored in a refrigerator until needed. However, if you leave it out, it will spoil within 24 hours. To extend the shelf life of the milk, store it in the freezer. Once frozen, it can last for several months.
How long can you keep prepared formula milk?
Baby formula is not meant to be stored for very long periods of time. It needs to be refrigerated after opening. Baby formula can last about 6 months if stored properly. However, if left unrefrigerated, it can go bad within 2 weeks.
Can you prepare formula milk in advance?
Yes, you can. It is very easy to prepare formula ahead of time. Just follow these steps: 1 Put the bottle of milk in the fridge overnight. 2 In the morning, take the bottle out of the refrigerator and let it warm up for about 30 minutes. 3 Then, pour the milk into the bottles and cap them tightly. 4 Store the bottles in the freezer until ready to feed your baby. 5 Once you are ready to feed your baby, simply remove the frozen bottles from the freezer and warm them up in the microwave for about 10 seconds. 6 After warming up, put the nipple in the bottle and give it a gentle squeeze. 7 Wait for 15 minutes and then start feeding your baby. 8 Repeat the process every two hours until your baby finishes his/her bottle. 9 Once your baby finishes his/ her bottle, store the empty bottles back in the freezer. 10 This way, you won’t have to worry about running out of formula when you’re busy during the day.
How long can you keep formula once made up?
Formula is good for about two weeks if stored properly. It is recommended that you store it in a cool dry place away from direct sunlight. Do not refrigerate it as this could cause the milk to separate.
What happens if you give a baby formula after 2 hours?
If you feed your baby formula within two hours of birth, he or she could develop diarrhea. This is because breast milk contains antibodies that help protect against infections. Formula does not contain these antibodies.