Why Rinsing Apples Is a Mistake: Dietitian’s Recommended Method

A French nutritionist is advising against simply rinsing apples with water, stating that it’s not the most effective way to remove pesticide residue. Instead, she recommends a specific washing method involving baking soda.

The advice, initially reported by Modes et travaux, highlights the importance of properly cleaning produce, even organic varieties, to eliminate potential contaminants accumulated during transportation and storage. While seemingly clean, apples can harbor pesticides, bacteria, and waxes.

The Problem with Just Water

Simply rinsing apples under running water, while a common practice, isn’t sufficient to remove all surface contaminants. According to information from Nutrixu.com, pesticides and protective waxes can remain on the fruit’s surface even after a water rinse.

Baking Soda to the Rescue

The recommended method involves soaking apples in a solution of water and baking soda. While the specific ratio wasn’t detailed in the initial report, other sources indicate that baking soda can aid in breaking down certain pesticide residues. A study referenced by Nutrixu.com showed that a baking soda soak, followed by a water rinse, was more effective at removing some surface pesticides than water alone.

This method builds on guidance from the U.S. Food and Drug Administration (FDA), which recommends washing produce under cool running water, rubbing the surface with fingers or a brush. The addition of baking soda offers an extra step for those concerned about pesticide exposure.

Why Washing is Crucial, Even for Organic Apples

The need for washing applies to both conventionally grown and organic apples. While organic farming practices limit pesticide use, apples can still come into contact with contaminants during handling and transportation. Dirt and bacteria are also concerns, regardless of how the apple was grown.

experts emphasize the importance of washing apples right before consumption. Washing and then storing can introduce moisture, potentially leading to spoilage.

The Importance of Keeping the Peel On

To maximize nutritional benefits, washing apples thoroughly instead of peeling them is recommended. The skin contains a significant amount of fiber and antioxidants, contributing to overall health. According to Nutrixu.com, keeping the peel on allows for greater nutrient intake.

Recent Research on Pesticide Removal

Recent research, including a report published in the journal Nano Letters in August 2024, suggests that traditional washing methods may not completely remove pesticides. The study found that “fruit-cleaning operations cannot wholly remove pesticides.” This finding reinforces the need for careful produce washing and consideration of methods beyond a simple water rinse.

However, it’s important to note that the Nano Letters study focused on the technical aspects of pesticide detection and didn’t specifically evaluate the effectiveness of baking soda or other enhanced washing techniques. The study also highlighted that 20% of tested fruits and vegetables carried pesticide residues at levels posing “significant risks” to consumers, based on data from the U.S. Department of Agriculture (USDA).

What to Avoid When Washing Apples

Experts advise against using soaps, detergents, or commercial produce washes. These products are not intended for consumption and can be absorbed by the apple, potentially causing illness. Stick to running water and, optionally, a baking soda soak for the most effective and safe cleaning method.

As Simply Recipes reported on January 9, 2026, a food science professor recommends washing apples under warm running water as the best cleaning method. This aligns with the FDA’s guidance on produce washing.