Infant Formula Preparation: Should You Pour Water or Powder First in a Formula Mixer?

Infant Formula Preparation: Should You Pour Water or Powder First in a Formula Mixer?

May 26, 2023E. Parris

Infant Formula Preparation: Should You Pour Water or Powder First in a Formula Mixer?


Preparing infant formula is an important task for parents and caregivers. It ensures that babies receive the necessary nutrition when breastfeeding is not an option. However, the question of whether to pour water or powder first into a formula mixer often arises. In this blog post, we will explore the best practice for mixing infant formula using a formula mixer, considering both safety and nutritional aspects. Let's dive in!

  1. Safety Considerations:

When preparing infant formula, safety should be the top priority. Follow these guidelines for safe formula mixing:

a) Sterilize: Before using any equipment, sterilize bottles, formula mixers, and other utensils to eliminate potential harmful bacteria.

b) Wash Hands: Always wash your hands thoroughly with soap and water before handling formula ingredients and equipment.

  1. Powder First or Water First?

The official recommendation for mixing infant formula using a formula mixer is to add the water first, followed by the powder. Here's why:

a) Accurate Measurements: By adding water first, you ensure that you measure the correct amount of water needed for the formula. This helps in achieving the desired concentration and proper nutrition for your baby.

b) Preventing Clumping: Adding powder on top of water allows it to dissolve more easily and minimizes the chance of clumping. This ensures a smooth and consistent mixture, avoiding any potential issues with feeding.

c) Heat Dissipation: When you pour water first, it helps dissipate any heat generated during the mixing process. Some formula mixers can generate heat, which can affect the quality of the powdered formula. By pouring water first, you reduce the risk of any heat-related concerns.

  1. Step-by-Step Guide for Formula Mixer Preparation:

To properly prepare infant formula using a formula mixer, follow these steps:

Step 1: Sterilize all equipment, including bottles and formula mixer, as per the manufacturer's instructions.

Step 2: Wash your hands thoroughly with soap and water.

Step 3: Measure the appropriate amount of water according to the instructions on the formula packaging.

Step 4: Pour the measured water into the formula mixer.

Step 5: Using the provided scoop, measure the correct amount of formula powder as indicated on the packaging.

Step 6: Add the formula powder on top of the water in the formula mixer.

Step 7: Securely attach the formula mixer lid and mix according to the manufacturer's instructions until the powder is completely dissolved.

Step 8: Pour the prepared formula into sterilized bottles and store them in the refrigerator, following the guidelines on the formula packaging.

  1. Additional Tips:

a) Follow Manufacturer Instructions: Always read and follow the specific instructions provided by the formula manufacturer. Different formulas may have slight variations in preparation guidelines.

b) Room Temperature Water: Use water at room temperature, unless the formula specifically instructs otherwise. Using water that is too hot can denature proteins and may pose a risk to your baby.


When using a formula mixer to prepare infant formula, it is recommended to pour water first and then add the powder. This approach ensures accurate measurements, prevents clumping, and helps dissipate any generated heat. Remember to prioritize safety by sterilizing equipment and following proper hygiene practices throughout the process. By following these guidelines, you can confidently prepare infant formula using a formula mixer and provide your little one with the necessary nutrition they need.

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