How to Clean Eufy E20 Breast Pump

This guide walks you through how to clean the Eufy E20 breast pump thoroughly after every use. You’ll learn safe washing, sterilizing, and storage tips to maintain hygiene and extend your pump’s lifespan.

Key Takeaways

• Clean after every use: Always disassemble and wash pump parts that contact milk to prevent bacteria buildup and ensure safe feeding.
• Use only safe cleaning methods: Wash with warm soapy water or a dishwasher (top rack only); avoid harsh chemicals or abrasive scrubbers.
• Sterilize regularly: Use steam sterilizers, boiling water, or microwave steam bags to kill germs—especially important for newborns or immunocompromised babies.
• Dry completely before reassembling: Air-dry all parts on a clean towel to prevent mold or mildew growth in hidden crevices.
• Store properly: Keep cleaned and dried parts in a sealed container or clean bag to avoid contamination before next use.
• Check for wear and tear: Inspect valves, membranes, and flanges regularly; replace damaged parts to maintain suction and safety.
• Follow manufacturer guidelines: Always refer to the Eufy E20 user manual for model-specific instructions and warranty compliance.

How to Clean Eufy E20 Breast Pump: A Complete Step-by-Step Guide

If you’re a new mom using the Eufy E20 breast pump, you already know how essential it is to keep your pump clean and hygienic. Proper cleaning isn’t just about hygiene—it’s about protecting your baby’s health, maintaining pump performance, and extending the life of your device. The Eufy E20 is a popular wearable, hands-free pump known for its quiet operation and compact design, but like all breast pumps, it requires consistent and thorough cleaning after every use.

In this comprehensive guide, you’ll learn exactly how to clean the Eufy E20 breast pump safely and effectively. We’ll walk you through disassembly, washing, sterilizing, drying, and storing each component. You’ll also get practical tips, troubleshooting advice, and answers to common questions. Whether you’re pumping at home, at work, or on the go, this guide will help you keep your Eufy E20 in top condition—so you can focus on what matters most: your baby.

Let’s get started!

Why Cleaning Your Eufy E20 Breast Pump Matters

Before diving into the steps, it’s important to understand why cleaning your breast pump is so crucial. Breast milk is a nutrient-rich substance, and any leftover residue can quickly become a breeding ground for bacteria, mold, and yeast. If these contaminants enter your baby’s milk, they could cause infections or digestive issues.

The Eufy E20 is designed with multiple parts that come into direct contact with your breast milk—including the flange, valve, membrane, and milk collection container. Even tiny amounts of dried milk can harbor harmful microbes if not cleaned properly. Additionally, improper cleaning can clog valves or damage delicate components, leading to reduced suction, leaks, or pump failure.

Cleaning your pump after every use also helps preserve its performance. The Eufy E20 relies on precise airflow and suction mechanics, and residue buildup can interfere with these functions. Regular cleaning ensures consistent suction strength and a more comfortable pumping experience.

Finally, maintaining a clean pump supports your overall breastfeeding journey. When you know your equipment is safe and sanitary, you can pump with confidence—whether you’re building a freezer stash, returning to work, or simply giving your baby a bottle while you rest.

What You’ll Need to Clean Your Eufy E20 Breast Pump

Gather these supplies before you begin. Having everything ready will make the cleaning process faster and more efficient.

• Mild dish soap (preferably fragrance-free and antibacterial)
• Clean sponge or soft brush (dedicated to pump parts only)
• Warm water
• Clean towel or drying rack
• Steam sterilizer (electric or microwave-safe)
• Microwave steam sterilization bag (optional)
• Large pot (if boiling)
• Clean container or resealable bag for storage
• Distilled water (optional, for rinsing if you have hard water)

Tip: Avoid using bleach, vinegar, or harsh chemical cleaners unless specifically recommended by Eufy. These can degrade silicone parts or leave harmful residues.

Step 1: Disassemble the Eufy E20 Breast Pump

The first step in cleaning your Eufy E20 is to fully disassemble all parts that come into contact with breast milk. This ensures every surface gets cleaned thoroughly.

Remove the Flange and Milk Collection Container

Start by gently twisting the flange (the part that fits against your breast) counterclockwise to detach it from the pump motor. Then, carefully remove the milk collection container (the small bottle or bag that holds the expressed milk). If you’re using the Eufy E20 with a collection bag, detach it and set it aside for separate cleaning or disposal.

Take Apart the Valve and Membrane

Next, locate the valve assembly—this is usually a small silicone piece with a flap or dome-shaped membrane. Gently pull the valve out of the flange or collection container. The membrane is often attached to the valve or sits underneath it. Be careful not to tear or stretch these delicate parts.

Tip: If you’re unsure how the valve fits, refer to the Eufy E20 user manual or look for alignment marks. Some users find it helpful to take a photo before disassembly so they can reassemble correctly later.

Separate All Washable Components

At this point, you should have the following parts ready for cleaning:
– Flange
– Valve
– Membrane
– Milk collection container (bottle or bag adapter)
– Any additional connectors or seals

Do not submerge the motor unit or charging cable in water. These parts are electronic and should never be washed.

Step 2: Rinse Immediately After Pumping

As soon as you finish pumping, rinse all milk-contact parts under warm running water. This step is crucial because it removes fresh milk before it dries and hardens.

Rinse Each Part Thoroughly

Hold each component under warm water, making sure to flush out any milk residue from inside the flange, valve, and collection container. Pay special attention to small crevices where milk can get trapped.

Tip: Use your fingers to gently rub the inside of the flange and around the valve seat. This helps loosen any clinging milk.

Why Immediate Rinsing Matters

Dried milk is much harder to remove and can lead to bacterial growth. Rinsing right away makes the deep cleaning process easier and more effective. If you can’t wash immediately (for example, if you’re at work), place the parts in a clean container with cool water until you can clean them properly.

Step 3: Wash with Warm Soapy Water

After rinsing, it’s time to wash all parts with soap and water. This step removes oils, bacteria, and any remaining milk residue.

Prepare Your Cleaning Solution

Fill a clean basin or sink with warm water and add a few drops of mild dish soap. Avoid using antibacterial soaps with strong fragrances, as they may leave residues that could affect taste or safety.

Scrub Each Component

Using a soft sponge or brush (dedicated only to pump parts), gently scrub each piece:
– Wash the inside and outside of the flange
– Clean the valve and membrane thoroughly, ensuring no milk is stuck in the flap or hinge
– Scrub the milk collection container, including the threads and lid

Tip: For hard-to-reach areas, use a bottle brush or a soft toothbrush. Never use steel wool or abrasive pads—they can scratch silicone and plastic, creating hiding spots for bacteria.

Rinse Again

Once all parts are scrubbed, rinse them thoroughly under clean, warm water to remove all soap residue. Leftover soap can affect the taste of your milk and may irritate your baby’s mouth.

Step 4: Sterilize the Pump Parts

Washing removes visible dirt, but sterilizing kills bacteria, viruses, and other microorganisms. This step is especially important for newborns, preterm babies, or if you or your baby have a weakened immune system.

Option 1: Use a Steam Sterilizer

Electric steam sterilizers are one of the most effective and convenient methods. Follow these steps:
1. Place all cleaned pump parts in the sterilizer basket, ensuring they don’t touch each other.
2. Add water to the sterilizer as directed by the manufacturer.
3. Close the lid and run the sterilization cycle (usually 8–15 minutes).
4. Allow parts to cool before removing.

Tip: Some sterilizers have a “dry” function that helps evaporate moisture—this can reduce drying time.

Option 2: Boil in Water

If you don’t have a sterilizer, boiling is a reliable alternative:
1. Fill a large pot with enough water to fully submerge all parts.
2. Bring water to a rolling boil.
3. Carefully place pump parts in the boiling water using tongs.
4. Boil for 5 minutes.
5. Remove parts and place them on a clean towel to dry.

Caution: Do not boil the motor unit or any electronic components. Also, avoid boiling silicone parts for too long, as excessive heat can degrade the material over time.

Option 3: Microwave Steam Bags

Microwave steam sterilization bags are portable and great for travel:
1. Place clean pump parts inside the bag.
2. Add the recommended amount of water.
3. Seal the bag and microwave on high for 1–2 minutes (follow bag instructions).
4. Let the bag cool before opening to avoid burns.

Tip: These bags are reusable but should be replaced when they show signs of wear.

Step 5: Dry Completely Before Reassembling

Drying is a critical step that’s often overlooked. Moisture left in pump parts can lead to mold, mildew, or bacterial growth—even after sterilization.

Air-Dry on a Clean Towel

Place all sterilized parts on a clean, dry towel in a well-ventilated area. Allow them to air-dry completely—this usually takes 1–2 hours. Avoid using a dish towel that’s been used for other purposes, as it may transfer bacteria.

Ensure Hidden Areas Are Dry

Pay special attention to the valve and membrane, as these can trap moisture. Shake them gently or use a clean paper towel to blot excess water. You can also invert the flange and collection container to let water drain out.

Tip: Never use a hair dryer or heat source to speed up drying—this can warp plastic or damage silicone.

Check for Complete Dryness

Before reassembling, make sure no water droplets remain inside any part. Even a small amount of moisture can compromise hygiene.

Step 6: Store Properly Until Next Use

Once everything is clean and dry, store your pump parts safely to prevent contamination.

Use a Clean, Sealed Container

Place all parts in a clean, airtight container or a resealable plastic bag. Label it if you’re storing multiple pump sets. This protects the parts from dust, pets, or accidental spills.

Store in a Cool, Dry Place

Avoid storing pump parts in humid areas like bathrooms. A kitchen cabinet or drawer is ideal. Keep them away from direct sunlight, which can degrade silicone over time.

Tip: If you’re pumping multiple times a day, consider having two sets of parts so you can rotate while one set is being cleaned.

Cleaning the Eufy E20 Motor Unit

The motor unit of the Eufy E20 should never be submerged in water or placed in a dishwasher or sterilizer. However, it does need occasional cleaning to maintain performance.

Wipe Down the Exterior

Use a soft, slightly damp cloth to wipe the outside of the motor unit. Remove any dust, milk splatter, or fingerprints. Avoid getting water near the charging port or buttons.

Clean the Air Path (If Applicable)

Some Eufy models have a small air filter or vent. Check your user manual to see if your model includes this. If so, gently wipe it with a dry cloth. Do not use water or cleaning solutions.

Charge and Store Safely

After cleaning, store the motor unit in a dry place. Charge it regularly to ensure it’s ready for your next pumping session.

How Often Should You Clean Your Eufy E20?

The frequency of cleaning depends on how often you pump, but here are general guidelines:

• After every use: Always rinse and wash all milk-contact parts.
• Daily sterilization: Recommended for newborns or if your baby is sick.
• Every few days: If your baby is healthy and over 3 months old, you may sterilize every 2–3 uses.
• Weekly deep clean: Even if you sterilize regularly, do a thorough scrub of all parts once a week to remove any buildup.

Tip: If you notice a sour smell, discoloration, or reduced suction, it’s time for a deep clean—even if it hasn’t been a full week.

Troubleshooting Common Cleaning Issues

Even with careful cleaning, you might run into problems. Here’s how to handle common issues:

Milk Residue Won’t Come Off

If dried milk is stuck, soak the parts in warm, soapy water for 15–30 minutes before scrubbing. For stubborn buildup, use a paste of baking soda and water (rinse thoroughly afterward).

Valve or Membrane Looks Cloudy or Sticky

This could indicate soap residue or mineral buildup. Rinse with distilled water or replace the part if it’s damaged. Cloudiness in silicone can also be a sign of wear—consider replacing valves every 1–2 months.

Pump Has a Strange Smell

A sour or musty odor suggests bacterial or mold growth. Disassemble and clean all parts immediately. Check for hidden moisture in the valve or flange. If the smell persists, replace affected parts.

Suction Feels Weak After Cleaning

This could be due to a clogged valve, damaged membrane, or improper reassembly. Double-check that all parts are correctly aligned and not obstructed. Replace worn-out valves or membranes as needed.

Parts Are Cracking or Brittle

Silicone and plastic degrade over time, especially with frequent boiling or harsh cleaners. Replace any cracked or brittle parts to ensure safety and performance.

Tips for Cleaning on the Go

If you’re pumping at work, travel, or away from home, cleaning can be more challenging. Here’s how to stay on top of it:

• Use disposable collection bags: These eliminate the need to clean a bottle on the spot.
• Carry a portable cleaning kit: Include a small bottle of dish soap, a travel brush, and a resealable bag for soaking.
• Rinse immediately: Use a water bottle or sink to rinse parts right after pumping.
• Use microwave steam bags: These are compact and effective for on-the-go sterilization.
• Store dirty parts safely: Place used parts in a sealed bag until you can clean them properly.

Tip: Many workplaces have lactation rooms with sinks and microwaves—take advantage of these resources.

When to Replace Eufy E20 Parts

Even with perfect cleaning, pump parts wear out over time. Replace them regularly to maintain hygiene and performance:

• Valves and membranes: Every 1–2 months or when they become sticky, cloudy, or less flexible.
• Flanges: Every 3–6 months or if cracked, warped, or no longer fit comfortably.
• Collection containers: Replace if scratched, cloudy, or damaged.
• Seals and connectors: Inspect monthly; replace if torn or loose.

Tip: Keep spare parts on hand so you’re never caught off guard.

Final Thoughts: Keep Your Eufy E20 Clean and Confident

Cleaning your Eufy E20 breast pump may seem like a chore, but it’s a small investment in your health, your baby’s safety, and your pumping success. By following this guide, you’ll ensure that every drop of milk is safe, your pump works efficiently, and your breastfeeding journey stays stress-free.

Remember: how to clean the Eufy E20 breast pump isn’t just about following steps—it’s about building a routine that fits your life. Whether you’re a first-time mom or a seasoned pumper, consistency is key. Rinse immediately, wash thoroughly, sterilize regularly, dry completely, and store safely.

With a little practice, cleaning your pump will become second nature. And when you know your equipment is spotless and ready to go, you can pump with peace of mind—anytime, anywhere.