How to Clean a Momcozy Breast Pump
If you’re using a Momcozy breast pump, keeping it clean isn’t just a good habit—it’s essential for protecting your milk, your pump, and your baby. A quick rinse isn’t enough when it comes to removing milk residue and preventing harmful bacteria from building up inside hard-to-reach parts. Whether you have the Momcozy M5, M6, M9, S12 Pro, S9 Pro, V1, or V2, each model has its own do’s and don’ts when it comes to washing and sterilizing.
Not sure which parts can be boiled, which need to be hand-washed, or how to store your pump safely between sessions? This guide walks you through exactly how to clean your Momcozy pump step by step—so you can keep your pumping routine safe, simple, and stress-free.
Editor’s note: All thoughts are my own. Pumping Milk is reader-supported, meaning, at no cost to you, I may earn a commission if you buy after clicking an affiliate link. Learn More.
Why Cleaning Your Momcozy Breast Pump Matters
Keeping your Momcozy breast pump clean is essential for your baby’s health and your peace of mind. Breast milk is highly nutritious but can also be a breeding ground for bacteria if pump parts aren’t properly cleaned. Residue left on components can harbor harmful germs, potentially leading to infections in infants and mastitis in mothers.
The Centers for Disease Control and Prevention (CDC) recommends cleaning pump parts thoroughly after each use to prevent bacterial growth. This involves disassembling all parts that come into contact with milk, rinsing them under running water, and washing them with soap and hot water in a dedicated basin—not directly in the sink—to prevent contamination. For added safety, especially if your baby is under 3 months old, was born prematurely, or has a weakened immune system, daily sanitization of pump parts is recommended.
By diligently cleaning and sanitizing your Momcozy breast pump, you not only ensure the delivery of safe, healthy milk to your baby but also extend the lifespan of your pump, making your breastfeeding journey smoother and more secure.
What You’ll Need to Clean Your Momcozy Pump
To ensure your Momcozy breast pump remains clean and safe for use, having the right cleaning supplies is essential. Here’s a list of recommended items:
- Mild Dish Soap: Opt for a gentle, fragrance-free soap suitable for baby products.
- Dedicated Wash Basin: Use a separate basin exclusively for cleaning pump parts to prevent cross-contamination.
- Bottle Brush Set: A set with various brush sizes helps clean hard-to-reach areas like valves and membranes.
- Drying Rack or Clean Towel: After washing, place parts on a clean drying rack or towel to air dry completely.
- Sterilizing Equipment: Depending on your pump model, you can use boiling water, microwave steam bags, or an electric sterilizer to sanitize parts.
- Portable Cleaning Wipes: For on-the-go cleaning, consider using wipes designed for breast pump parts.
Having these supplies on hand will make the cleaning process more efficient and help maintain the hygiene of your Momcozy breast pump.
General Cleaning Guidelines for All Momcozy Models
Keeping your Momcozy breast pump clean is essential for your baby’s health and the pump’s performance. Whether you own the M5, M6, M9, S9 Pro, S12 Pro, V1, or V2, following these general cleaning steps will help ensure hygiene and longevity.
Step 1: Wash Your Hands
Before handling pump parts, thoroughly wash your hands with soap and water to prevent contamination.
Step 2: Disassemble the Pump
Separate all components that come into contact with breast milk, including:
- Breast shields (flanges)
- Valves and membranes
- Milk collection cups
- Diaphragms
- Linkers
- Flange inserts (if used)
Note: Do not wash or submerge the pump motor or tubing. Instead, wipe these parts with a clean, dry cloth as needed.
Step 3: Rinse Parts
Rinse each disassembled part under cool running water to remove milk residue.
Step 4: Wash Thoroughly
In a clean basin filled with warm water and mild dish soap, wash all parts using a soft bottle brush to reach crevices. Avoid using the kitchen sink to prevent exposure to contaminants.
Step 5: Rinse Again
After washing, rinse all parts under clean running water to eliminate soap residue.
Step 6: Air Dry Completely
Place the cleaned parts on a clean paper towel or dedicated drying rack. Allow them to air dry thoroughly. Avoid using cloth towels, which can harbor bacteria.
Sanitizing Your Momcozy Pump Parts
Sanitizing your Momcozy breast pump parts is crucial for your baby’s health, especially during the early months. Proper sterilization ensures that harmful bacteria are eliminated, keeping your milk safe.
Whilst below I outline ways you can sterilize your pump parts, I always recommend you refer to your Momcozy pump manual for sterilizing requirements as these can change from time to time.
As an important note, Momcozy do not recommend sterilizing pump parts in a microwave or UV sterilizer.
High temperature(> 110 °C) will shorten their service life and cause safety hazards.
Option 1: Boiling Method
Recommended for: All Momcozy models, including M5, M6, M9, S12 Pro, S9 Pro, V1, and V2.
Steps:
- Disassemble all parts that come into contact with breast milk, such as flanges, valves, membranes, and collection cups.
- Place them in a large pot filled with water, ensuring they are fully submerged.
- Bring the water to a rolling boil and let it continue boiling for at least 5 minutes.
- Use clean tongs to remove the parts and place them on a clean, unused towel to air dry completely.
Note: Always check your pump’s manual to confirm which parts are safe to boil.
Option 2: Microwave Steam Bags
Suitable for: Momcozy’s own steam sterilizer bags are designed for certain models such as S12 Pro, S9 Pro, V1, and V2. They are not suitable for the Momcozy M5.
Steps:
- Place the cleaned pump parts into the steam bag.
- Add the recommended amount of water, usually around 60 ml.
- Seal the bag and microwave according to the manufacturer’s instructions, typically for about 90 seconds.
- Allow the bag to cool before removing the parts.
- Place the sterilized parts on a clean surface to air dry.
Option 3: Electric Steam Sterilizers
Suitable for: Check your specific model’s manual to confirm compatibility. High temperature(> 110 °C) will shorten their service life and cause safety hazards. UV sterilizers are not recommended.
Steps:
- Disassemble and clean all pump parts that require sterilization.
- Place them into the sterilizer, ensuring they are properly arranged for optimal steam exposure.
- Add the recommended amount of water as per the sterilizer’s instructions.
- Start the sterilization cycle and wait for it to complete.
- Once done, allow the parts to cool before handling.
Option 4: Cold Water Sterilizing Solution
Suitable for: All Momcozy models.
Steps:
- Prepare a clean container (with lid) and fill it with cold water.
- Add sterilizing tablets or liquid solution according to the package directions.
- Submerge fully disassembled pump parts in the solution, making sure there are no air pockets.
- Leave parts to soak for the recommended time (usually 15 minutes).
- Remove parts with clean tongs and let them air dry—no need to rinse.
Tip: This method is especially useful when traveling or when other sterilization methods are not available.
Option 5: Momcozy KleanPal Pro Bottle & Pump Washer and Sterilizer
Suitable for: Most Momcozy models.
If you’re looking for an all-in-one, hands-off solution to wash, sterilize, and dry your Medela pump parts, I think the Momcozy KleanPal Pro is a game changer. It’s especially helpful for busy moms who pump frequently and want to streamline their cleaning routine.
Features:
- Washes, sterilizes, dries, and stores pump parts.
- Uses high-pressure jets and steam to ensure thorough cleaning.
- Automatically dries parts, keeping them sterile for up to 72 hours.
Steps:
- Disassemble all parts and give them a quick rinse to remove any milk residue.
- Place parts in the KleanPal Pro basket—ensure tubing and motor are excluded.
- Choose your preferred cycle: Wash Only, Sterilize & Dry Only, or Full Cycle (Wash + Sterilize + Dry).
- Once the cycle is complete, parts are clean, dry, and ready for storage.
Note: Always check your Momcozy model’s instructions to confirm that your parts are heat-safe before using the KleanPal Pro.
Watch the Video: How to Clean Your Momcozy Breast Pump
Prefer to see the cleaning steps in action? Watch my full video walkthrough where I show you exactly how to disassemble, wash, sanitize, and dry your Momcozy pump parts—plus tips on what not to clean and when to replace tubing.
FAQs About Cleaning a Momcozy Breast Pump
Yes. It’s important to clean all parts that come into contact with breast milk after each use. This helps prevent milk residue from building up and reduces the risk of bacterial growth, ensuring your milk stays safe for your baby.
The CDC recommends sanitizing pump parts at least once daily if your baby is under 3 months old, was born prematurely, or has a weakened immune system. Even if your baby is older, daily sanitizing is a good practice to maintain hygiene.
Some Momcozy pump parts are top-rack dishwasher safe, but it’s best to consult your specific model’s user manual to confirm. Always avoid placing the pump motor or any electrical components in the dishwasher.
Microwave steam bags can be a convenient way to sanitize certain Momcozy pump parts. However, not all parts are suitable for this method. For example, the M5 model’s silicone components should not be sterilized using microwave steam bags. Always refer to your pump’s manual for specific cleaning instructions.
Electric sterilizers can be used with some Momcozy pump parts, but it’s essential to check your model’s guidelines. For instance, certain silicone parts may not be suitable for high-temperature sterilization methods. Always ensure you’re following the manufacturer’s recommendations to avoid damaging your pump.
After cleaning and thoroughly drying your pump parts, store them in a clean, dry container with a lid or in a sealed plastic bag. This helps keep them free from dust and contaminants until your next use.
If you’re unable to clean your pump parts right away, rinse them to remove any milk residue and store them in a sealed bag in the refrigerator. This can help prevent bacterial growth until you’re able to clean and sanitize them properly. However, this should be a temporary solution, and thorough cleaning should be done as soon as possible.
Final Thoughts on Cleaning a Momcozy Pump
Keeping your Momcozy breast pump clean is essential—not just for hygiene, but also for ensuring your pump functions efficiently and lasts longer. Regular cleaning and proper sanitization help protect your baby from harmful bacteria and maintain the quality of your breast milk.
Remember, cleaning your pump after each use and sanitizing it daily, especially if your baby is under 3 months old or has a weakened immune system, is recommended.
Additionally, it’s important to regularly inspect your pump parts for wear and tear. Over time, components like valves and membranes can degrade, affecting suction and performance. For guidance on when to replace these parts, refer to this comprehensive guide: How Often Should You Replace Breast Pump Parts?
By following these cleaning and maintenance practices, you can ensure a safe and efficient pumping experience for both you and your baby.
