Baby / 16 September, 2026 / Christina Walter

Can You Wash Breast Pump Parts In A Bottle Washer? Here’s What You Need To Know

A dedicated bottle washer can clean many breast pump parts, but only when you treat it as a precision load rather than a shortcut. You disassemble the kit, place each washable piece in the right zone, and run a cycle built for narrow crevices. You do not drop in the motor unit, skip the placement guide, or assume every tube and valve is machine-safe without reading your pump maker’s instructions first.

This is especially useful for mums who express several times a day. A bottle washer can save time on repeatedly hand-washing flanges, valves and other pump parts, provided they are loaded correctly.

Which Pump Parts Can Go in a Bottle Washer?

Always start with the cleaning guide that came with your pump. Momcozy’s DeepClean D8 product page states that the unit can clean pump parts and small accessories using TubeWash, Pump360 rotational spray, and an Anti-Flip Lock design. Listed items include tubing, teats, valves, and other small, complex parts—not the electrical pump motor.

Momcozy also notes the D8 can handle up to two full sets of breast pump parts in one cycle, or up to eight baby bottles. Images on the product page show single pump kits for Momcozy Air1, M9, and M5 models loaded with dedicated spray assemblies. Pump360 rotary jets are designed to cover pump component surfaces; TargetWash jets address smaller crevice pieces.

If a part is labelled hand-wash only, not dishwasher-safe, or excluded from your manufacturer’s sterilising instructions, treat that label as final. The bottle washer does not override it.

Which Parts Should Stay Out of the Machine?

The D8 can clean washable breast pump parts, but the pump itself must not be placed inside the machine. Keep the motor, battery, charger and any electrical components out of the washer.

Always check your pump’s instructions before washing the parts. If a part isn’t suitable for washing, such as certain membranes, filters or tubes, keep it out of the machine. If you’re unsure, check with the manufacturer.

The D8’s steam sterilising cycle reaches 212°F. Make sure your pump parts are suitable for this level of heat, and replace any parts that are cracked or damaged.

How Do I Wash Pump Parts in a Bottle Washer?

Momcozy’s setup FAQ outlines a straightforward sequence for the DeepClean D8. Follow it whenever you load pump parts instead of bottles alone.

Step 1: Disassemble and pre-rinse

Separate flanges, valves, connectors, and tubing according to your pump guide. Rinse off milk soon after expressing so residue does not dry in threads or valve seats.

Step 2: Place the unit and connect the drain

Set the washer on a flat surface. Connect the drain hose to your sink. Momcozy lists a 0.75 m drain hose and 1.2 m power cord in the box contents.

Step 3: Fill the water tank

Add purified water to the marked level. Momcozy recommends purified water for best results and strongly recommends distilled water to limit mineral buildup.

Step 4: Load parts in the correct zones

Use the included Cleaning Item Placement Guide. Secure small parts so spray reaches interior surfaces. Attach Pump360 rotary spray assemblies where the guide shows pump components. The Anti-Flip Lock design helps keep lightweight pieces from tipping during the cycle.

Step 5: Add detergent and select a mode

Place one official Momcozy detergent tablet in the washing chamber at the bottom—no separate compartment is required. Choose from 22 mode combinations on the product page, such as Normal Wash paired with Steam Sterilise and Dry, or Rapid Wash when you need a faster turn. Rapid Wash completes in as little as 19 minutes per Momcozy’s FAQ.

Step 6: Unload and verify

When the cycle finishes, check valves and tubing for remaining film before storage. The D8 can hold items in a storage mode for up to 72 hours after drying with its H13 medical-grade HEPA filter. Many pumping mums still air-check critical pieces before the next session.

Hand-Washing, Boiling, or a Bottle Washer for Pump Parts?

Hand-washing is still a simple and reliable way to clean pump parts. It’s suitable for parts that can’t go in a machine, but it can be time-consuming when you’re washing several pieces after every pumping session.

Boiling or countertop steam sterilisers add a high-heat step after washing. They help when your midwife, lactation consultant, or pump brand recommends periodic sterilisation. They still require disassembly and often a separate drying rack.

A bottle washer can wash, sterilise and dry pump parts in one cycle, making it a convenient option for mums who express several times a day. The Momcozy D8 uses 64 spray nozzles and powerful jets to clean hard-to-reach areas, before steam sterilising and drying the parts ready for their next use.

Whichever method you choose, always check your pump’s cleaning instructions first. The aim is simply to have clean, dry pump parts ready for the next use.

Using the Momcozy DeepClean D8 for Pump Part Loads

The Momcozy DeepClean Baby Bottle Washer (D8) is designed to clean breast pump parts as well as bottles and feeding accessories. For mums who express regularly, it can wash a full pump kit in one cycle, saving time and reducing the amount of hand-washing needed. You should still check your pump’s instructions to make sure each part is suitable for machine cleaning.

What we like about the product

• Designed for pump parts: The D8 has specific cleaning functions for items such as tubing, valves and other small pump parts.
• Good capacity: It can clean up to two full sets of pump parts in one cycle.
• All-in-one cleaning: You can wash, sterilise and dry your pump parts in the same cycle.
• Time-saving: For mums who express regularly, being able to clean everything together could make life much easier.

Things to Consider

• It takes up some space: The D8 measures 270 × 350 × 390mm, so you’ll need a suitable spot on your worktop.
• Some parts can’t go in: The pump motor, charger and any parts your pump manufacturer says are unsuitable must be kept out.
• You’ll need the right supplies: Momcozy recommends using its detergent tablets and distilled or purified water. Descaling is also part of regular maintenance.
• Check your pump instructions: Always make sure your specific pump parts are suitable for washing and steam sterilising before putting them in the D8.

FAQ

Can a bottle washer clean pump parts?

Yes, when the unit is designed for them and you load washable components correctly. The Momcozy DeepClean D8 lists tubing, teats, valves, and similar small parts among compatible items.

Always confirm each piece against your pump brand’s cleaning chart first.

How do I wash pump parts in a bottle washer?

Disassemble the kit, rinse milk residue, load parts per the placement guide, add one detergent tablet, fill purified water to the mark, connect the drain hose, and select a wash mode—often with sterilise and dry if you want an all-in-one cycle. Momcozy’s FAQ recommends up to two full pump part sets per load.

Can I mix pump parts and bottles in one cycle?

Momcozy states the D8 can clean up to eight bottles and accessories at once, or two full pump part sets. Mixed loads are possible within those capacity limits if everything fits securely and spray reaches each piece. Overloading blocks jets and leaves film behind.

Do I still need to hand-wash anything?

Keep hand-washing skills for travel, hand-wash-only labels, and quick rinses between full cycles. A bottle washer handles volume; it does not remove the need to read labels or replace worn valves.

The Momcozy DeepClean D8 is a convenient option for mums who regularly express and want to reduce the amount of hand-washing involved. It can wash, sterilise and dry compatible pump parts in one cycle, with space for up to two full sets.

Just remember to check your pump manufacturer’s instructions before loading the machine, as not every part will be suitable for washing or steam sterilising.

Overall, if you’re expressing several times a day, the D8 could be a useful time-saver, particularly when you want to get everything cleaned and ready for the next session in one go.

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