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How Long can Milk Formula Last After it's Mixed?

Can I store formula milk in the fridge? How long is formula good for once mixed? Learn the milk storage methods to ensure the best product quality here. Read more!

Dear parents, this guide is here to help you learn about how to store formula milk, how long you can keep formula milk, and what to expect during the preparation process. Read more!

Formula milk like Friso® Gold 3 can play a huge part in your child's health - it is packed with essential nutrients such as Vitamin D, Vitamin B6, Vitamin E and C, Taurine, Selenium, GOS, Zinc and DHA which supports your child's overall growth and natural body resistance. Read on to learn more about these nutrients:

Vitamin D- Vitamin D is necessary for the absorption and utilisation of calcium and phosphorus. Tuna fish, sardines, cereals and milks fortified with vitamin D are great sources for this vitamin 1.

Vitamin B6- This vitamin is important for cell function. It helps with metabolism, creating blood cells, as well as keeps cells healthy. You can obtain this vitamin from foods such as tuna, cereals, poultry, leafy vegetables and some fruits like bananas and papayas 2.

Vitamin E- Vitamin E protects the fat in body tissues from oxidation. It is also an antioxidant. It is found in many foods including peanut butter, fruits like mangoes and avocados, collard greens and spinach 3.

Vitamin C- Vitamin C contributes to the absorption of iron from food. It is a powerful antioxidant that can neutralise harmful free radicals. The best sources for vitamin C are citrus fruits and vegetables such as oranges, grapefruits, broccoli, cabbages and more 4.

Taurine- Taurine is a naturally occurring sulphur-containing amino acid. Taurine becomes essential only in times of illness and stress. Seeing as it can be found in food such as meat, seafood, dairy and even your body produces it, taurine deficiency is incredibly rare 5.

Selenium- Selenium is a trace mineral and the body does not need a huge amount of it. It is a component of various enzymes and proteins that make DNA and protect against cell damage and infections. It can be obtained from chicken, beef, beans, lentils, cereals and more 6.

GOS- Galacto-oligosaccharides (GOS) are prebiotics that are found in dairy products, beans, and certain vegetables. GOS can help with constipation and more 7.

Zinc- Like Selenium, Zinc is a trace mineral and the body needs only a little of it. Zinc is essential for growth. Meats, poultry, and seafood are rich in Zinc 8.

DHA- Docosahexaenoic acid (DHA) is an omega-3 fatty acid. It is important in the development of eye and nerve tissues as well as reducing the risk of heart and circulatory disease. It can be found in tuna, salmon and more 9.

While it's always important to feed your child a milk formula that contains the right amount of nutrients, how you prepare, feed and store the formula is also important. Paediatric nutrition needn't be complicated: This guide is here to answer the questions you may have about how to store formula, how long you can keep it and to also provide helpful advice to get you through the process.

 

Formula Preparation & Storage

Before you start, wash your hands with soap. Ensure the drinking container/cup is properly cleaned or sterilised as they can cause a bacterial infection if not cleaned properly. If you're using a bottle and dishwasher, check that the bottle is dishwasher safe. Have the container, warm water, and formula ready at your countertop before you begin.

Preparation instructions are simple: Measure and add 5 levelled scoops of powder to 180ml of lukewarm water. If you prefer boiling your tap water, it should be cooled down to below 40°C before preparation. Swirl or lightly shake the bottle horizontally during mixing to reduce air bubbles before feeding.

You can keep the formula at room temperature for up to 1 hour after preparation, and store the milk formula powder in a cool dry place. The shelf life of Friso® Gold 3 formula powder is 2 years, but as a guideline the entire contents should be consumed within 4 weeks after opening. Be sure to check the packaging label; do not use expired formula supplies to save cost or peruse formula from a dented can as it might be contaminated with bacteria, which can cause illness.

 

How Long Does Formula Milk Lasts After It's Mixed

Sometimes, your child might not want to consume the milk after you have mixed it. So how long can you keep the milk formula for if you have already prepared it and how to store it?

While some say that you can prepare some formula in advance, we advise that you use Friso® Gold 3 within 1 hour of preparation. It is specially formulated with LocNutri™ technology, where only mild heat treatment is used during the milk manufacturing process to preserve nutrients in its native structure. This prevents the proteins from getting damaged or destroyed, and helps prevent indigestion, colic, constipation and general stomach discomfort. By using the formula within the stipulated time, you reduce the chances of bacterial growth, and your child gets the easy-to-digest nutrition they need.

Also, do not keep any leftover formula after a feed. There's a chance that bacteria may have formed since then, so it's always best to play safe and discard for the sake of your child's health and immune system.

 

Clean And Sanitise Workspace Before Preparing Milk Formula

This is important as bacteria grows on everything. You need to keep a clean environment to protect your child both inside and out 10.

  • Ensure that you wash your hands thoroughly before handling your child’s bottle.
  • Check to ensure that the milk formula is not expired and the container is not damaged.
  • Clean your countertop with a clean damp cloth.
  • Clean every part of your child’s bottle thoroughly.

 

How To Clean And Sanitise All Parts Of The Bottle

Here are several methods to clean your child’s feeding equipment.

- Boiling

  1. Place all the parts of your child’s bottle in a large saucepan or pot on a stove.
  2. Let it be fully submerged by water.
  3. Get all the air bubbles out.
  4. Boil the water for approximately 5 minutes.
  5. Allow the water — with the equipment still inside — to cool.
  6. Remove the bottle parts from the pot and place them in an airtight container in the fridge.
  7. They can be stored in the fridge for up to 24 hours 11.

 

- Steaming

  1. In a steriliser, place your child’s feeding equipment.
  2. Avoid cramming the parts together to ensure that the steam reaches every nook and cranny of them.
  3. Fill up with water as instructed and turn it on.
  4. Wait for the indicator that the process is finished.
  5. Remove the bottle parts from the pot and place them in an airtight container in the fridge.
  6. They can be stored in the fridge for up to 24 hours. However, sterilise them again if the equipment isn’t used within 24 hours 12.

 

- Handwash

  1. Separate the bottle parts and rinse under running water.
  2. Scrub the feeding equipment parts in a basin of warm water and soap.
  3. Ensure you properly clean inside the nipples and flush water through the tips.
  4. Rinse again to get all the soap out.
  5. Air dry the equipment on a clean cloth 13.

 

- Dishwash

  1. Separate all feeding equipment parts.
  2. Rinse them thoroughly with clean running water.
  3. Avoid setting them down in a sink.
  4. Place all parts in a basket in your dishwasher so they don’t get lost or damaged.
  5. Run it on a hot-water cycle and heated drying cycle.
  6. Remove the parts afterwards and ensure that all parts are there.
  7. Air dry the parts on a clean cloth 13.

 

Can I Store Milk Formula in the Fridge?

How long is the milk formula good for once mixed? Your child may actually prefer cold or room-temperature milk, and they will show you signs of their preference. So yes, you can store the mixed milk formula in the fridge, making sure to tighten the cap. Remember to use it within 1 hour of preparation as longer refrigeration can lead to bacteria accumulation. It might help to check the bottle nipple to ensure it is not clogged before feeding. Unlike some other formulas, you cannot keep a bottle of mixed Friso® Gold 3 in the fridge for 24 hours or more. Try to time the feeds according to your child's sleep schedule and chart their intake where possible.

If you need to heat up the milk that's been stored in the fridge, never use a microwave; it can cause dangerous "hot spots" in the liquid that can burn your child's mouth and throat. Always consider your child's safety first! Warming the refrigerated milk is easy - you can run the drinking container under hot water, use a bottle warmer, or place it in a saucepan of hot water (that's been taken off the stove). Shake vigorously, and test the temperature by squirting a few drops on your inner wrist. If it burns, let it cool for a few minutes at room temperature before checking again.

Now that you've learnt the various information and precautions, how long you can keep mixed formula milk as well as how long milk formula is good for once it is mixed, do share this with other parents and caregivers. Friso® Gold Malaysia wants what is best for you and your child.

Explore to know which formula is best suited for every age & how to switch formula to ensure your child’s preferred formula!

Find out more today on the steps on Friso® Gold Step 3 and Step 4 product page

 

Buy direct at Friso® Gold Malaysia

 

 

Reference

  1. Vitamin D. (2022). Retrieved 13 June 2022, from https://www.hsph.harvard.edu/nutritionsource/vitamin-d/
  2. Vitamin B6. (2022). Retrieved 13 June 2022, from https://www.hsph.harvard.edu/nutritionsource/vitamin-b6/
  3. Vitamin E. (2022). Retrieved 13 June 2022, from https://www.hsph.harvard.edu/nutritionsource/vitamin-e/
  4. Vitamin C. (2022). Retrieved 13 June 2022, from https://www.hsph.harvard.edu/nutritionsource/vitamin-c/
  5. Jong, C. J., Sandal, P., & Schaffer, S. W. (2021). The Role of Taurine in Mitochondria Health: More Than Just an Antioxidant. Molecules (Basel, Switzerland), 26(16), 4913. https://doi.org/10.3390/molecules26164913
  6. Selenium. (2022). Retrieved 13 June 2022, from https://www.hsph.harvard.edu/nutritionsource/selenium/
  7. Fanaro S, Boehm G, Garssen J, Knol J, Mosca F, Stahl B, Vigi V. Galacto-oligosaccharides and long-chain fructo-oligosaccharides as prebiotics in infant formulas: a review. Acta Paediatr Suppl. 2005 Oct;94(449):22-6. doi: 10.1111/j.1651-2227.2005.tb02150.x. PMID: 16214761.
  8. Zinc. (2022). Retrieved 13 June 2022, from https://www.hsph.harvard.edu/nutritionsource/zinc/
  9. Birch EE, Hoffman DR, Uauy R, Birch DG, Prestidge C. Visual acuity and the essentiality of docosahexaenoic acid and arachidonic acid in the diet of term infants. Pediatr Res. 1998 Aug;44(2):201-9. doi: 10.1203/00006450-199808000-00011. PMID: 9702915.
  10. HOW TO PREPARE AND STORE POWDERED INFANT FORMULA. (2022). Retrieved 13 June 2022, from https://www.cdc.gov/nutrition/downloads/prepare-store-powered-infant-formula-508.pdf
  11. Rothstein, J. D., Mendoza, A. L., Cabrera, L. Z., Pachas, J., Calderón, M., Pajuelo, M. J., Caulfield, L. E., Winch, P. J., & Gilman, R. H. (2019). Household Contamination of Baby Bottles and Opportunities to Improve Bottle Hygiene in Peri-Urban Lima, Peru. The American journal of tropical medicine and hygiene, 100(4), 988–997. https://doi.org/10.4269/ajtmh.18-0301
  12. Dana Towle, Deborah A. Callan, Patricia A. Farrel, Marie E. Egan, Thomas S. Murray, Baby bottle steam sterilizers disinfect home nebulizers inoculated with bacterial respiratory pathogens, Journal of Cystic Fibrosis, Volume 12, Issue 5, 2013, Pages 512-516, ISSN 1569-1993 https://doi.org/10.1016/j.jcf.2012.11.013.
  13. Cleaning and sterilising baby bottles. (2022). Retrieved 13 June 2022, from https://www.pregnancybirthbaby.org.au/cleaning-and-sterilising-baby-bottles

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