Can You Wash Breast Pump Parts with Dish Soap?

When you’re a pumping parent, the cycle of washing and sterilizing pump parts can feel endless.

In the search for simplicity, you might find yourself looking at the bottle of dish soap by your sink and wondering if it’s safe to use on your baby’s feeding equipment.

The short answer is yes, you can often use regular dish soap, but there are important details to consider to ensure it’s done safely.

While our main guide on what soap to use to wash breast pump covers the full spectrum of safe options, this article will specifically address the pros, cons, and best practices for using standard dish soap.

According to the Centers for Disease Control and Prevention (CDC), using dish soap to clean infant feeding items is acceptable, provided you follow the right steps.

Hot water and soap are effective at breaking down the fats and proteins in breast milk, which is the primary goal of washing. However, not all dish soaps are created equal.

The key is to choose a soap that cleans effectively without leaving behind harmful residues, strong fragrances, or chemicals that could be ingested by your baby or irritate their sensitive system.

• Accessibility and Convenience: Dish soap is a household staple, readily available in any kitchen. You don’t need to buy a special product just for your pump parts.
• Effective on Grease: Most dish soaps are formulated to be excellent degreasers. This is perfect for cutting through the stubborn, greasy film that breast milk fat can leave on bottles and pump parts.
• Affordability: Standard dish soap is generally more budget-friendly than specialty baby bottle soaps.

• Harsh Chemicals and Additives: Many conventional dish soaps contain dyes, heavy perfumes, and harsh chemicals like SLS (Sodium Lauryl Sulfate) or phosphates. These ingredients can leave behind a residue that might be harmful or cause digestive upset in a baby.
• Strong Fragrances: The scents in dish soap can linger on plastic and silicone parts. A strong floral or citrus scent can be off-putting to a baby and may even cause them to reject a bottle.
• Rinsing Challenges: Some soaps create a lot of suds and can be difficult to rinse off completely. Any leftover soap film can affect the taste of the milk and introduce unwanted chemicals.

If you choose to use dish soap, you need to be selective. The goal is to find a product that is as simple and gentle as possible.

Look for dish soaps that are:

• Fragrance-Free and Dye-Free: Opt for “free and clear” versions. This is the most important factor in preventing residue that could bother your baby.
• Plant-Based or Naturally Derived: Soaps with plant-based ingredients are often gentler and less likely to contain harsh, synthetic chemicals.
• Hypoallergenic: Products labeled as hypoallergenic have been formulated to minimize the risk of allergic reactions.
• Free of Harsh Additives: Avoid soaps with antibacterial agents (like triclosan), phosphates, phthalates, and SLS if possible. A simple formula is always better.

Essentially, you are looking for a basic soap that cleans well without any unnecessary extras.

Using dish soap safely is all about the technique. Following the CDC-recommended method ensures that all milk residue is removed and no soap is left behind.

This process is a cornerstone of learning how to keep your breast pump clean.

Avoid washing pump parts directly in the sink, as it can harbor bacteria. Use a separate, clean basin reserved only for infant feeding items.

Take apart every component of your pump that came into contact with milk. Rinse each piece under cool, running water to remove most of the milk residue.

Fill your basin with hot water and add a few drops of your chosen gentle dish soap. Submerge all the parts and use a dedicated bottle brush and nipple brush to scrub every surface thoroughly. Don’t forget the threads on bottles and the tiny crevices in valves and membranes.

This is the most critical step when using dish soap. Hold each part under warm, running water and rinse it meticulously. Rub the surface with your clean fingers to ensure any slippery soap film is completely gone. If you can still smell the soap, it’s not rinsed enough.

Place the cleaned and rinsed parts on a dedicated drying rack or a clean paper towel. Allow them to air-dry completely before storing them in a protected area. Using a dish towel can reintroduce germs.

While dish soap is often sufficient, there are times when a specialty baby soap or a different cleaning method might be better.

• For Newborns or Premature Infants: Babies under three months old, those born prematurely, or any baby with a compromised immune system are more vulnerable to germs. In these cases, using a soap specifically designed for baby bottles or performing a more rigorous sanitization routine can provide extra peace of mind.
• If You Have Hard Water: Hard water can make it difficult to rinse soap away completely and can leave behind a mineral film on parts. A specialty soap may perform better in these conditions.
• For a Deeper Clean: Regular washing removes residue, but it’s not the same as sterilizing. Regardless of the soap you use, you should still be sanitizing your parts regularly. For a complete guide on this, you can explore our article on how to deep clean breast pump parts.

For certain components, like tubing, the cleaning rules are different. If you ever get milk in your tubing, you’ll need a specific approach.

Our guide on the best way to clean breast pump tubing details the safest and most effective method for that unique situation.

You can absolutely wash your breast pump parts with dish soap, and it can be just as safe and effective as specialty cleaners.

The key is to choose the right kind of dish soap—one that is free of fragrances, dyes, and harsh chemicals—and to be extra diligent about rinsing every part thoroughly.

By combining a safe soap with a proper washing technique, you can confidently keep your pumping equipment clean and safe for your little one.