How to Wash Produce and Reduce Pesticide Exposure

Washing fruits and vegetables is one simple thing you can do every day to reduce your exposure to pesticide residues. No expensive produce potion required.

Eating plenty of colorful produce is good for your brain.

Unfortunately, fruits and vegetables do not arrive in your kitchen wearing tiny labels that explain everywhere they have been or everything they have encountered along the way.

Washing produce cannot remove every pesticide. It can, however, reduce some surface residues, dirt, and bacteria. That makes it a practical daily step for reducing avoidable environmental exposures.

Why Pesticide Exposure Matters for Brain Health

Long-term pesticide exposure has been associated with an increased risk of Alzheimer’s disease and other neurodegenerative diseases.

A systematic review and meta-analysis found that pesticide exposure was associated with a higher risk of Alzheimer’s disease. Reducing unnecessary exposure is a reasonable part of a broader dementia risk-reduction strategy.

And washing produce is something you can do today.

The Best Everyday Way to Wash Produce

The FDA recommends a simple process:

1. Wash your hands. Use soap and warm water for at least 20 seconds before and after preparing produce.

2. Rinse before peeling. This helps prevent your knife from carrying dirt and bacteria from the outside into the food.

3. Hold produce under plain running water. Gently rub it with your hands while rinsing.

4. Scrub firm produce. Use a clean vegetable brush on foods such as melons, cucumbers, potatoes, and apples.

5. Remove damaged areas and outer leaves. Cut away bruised or damaged portions and discard the outermost leaves of lettuce or cabbage.

6. Dry it. Use a clean cloth or paper towel.

The FDA does not recommend washing produce with soap, detergent, or commercial produce wash.

Your produce does not need a bubble bath.

What About Baking Soda?

One laboratory study of apples found that a baking-soda solution removed surface residues of two pesticides more effectively than tap water or a bleach solution.

Complete removal from the surface required soaking the apples for about 12 to 15 minutes and did not remove pesticide residues that had penetrated the peel. The study did not establish that baking soda is the best washing method for all produce.

If you want to use a baking-soda soak for firm produce, rinse the produce thoroughly under running water afterward.

For everyday use, the FDA method remains refreshingly uncomplicated: running water, gentle rubbing, and a clean produce brush when needed.

Choose Organic When Possible

If buying everything organic does not fit your budget, the Environmental Working Group updates its Dirty Dozen and Clean Fifteen lists each year.

The Dirty Dozen identifies conventionally grown produce with the highest pesticide residue scores. These may be the foods you prioritize when buying organic.

The Clean Fifteen identifies produce with the lowest scores. These are reasonable places to save your organic food dollars.

Choose organic when it is available, affordable, and important to you. When it is not, buy the produce you will actually eat and wash it well.

Brain health is not built on perfection. It is built on practical choices repeated over time.

One Simple Action

Before eating or preparing produce today, hold it under running water and give it a good rub. Scrub firm produce with a clean brush.

It takes only a minute, requires no complicated equipment, and helps reduce an exposure you can influence. Your brain will thank you.

References

1. Yan D, Zhang Y, Liu L, Yan H. Pesticide Exposure and Risk of Alzheimer’s Disease: A Systematic Review and Meta-Analysis. Scientific Reports. 2016;6:32222.

2. Yang T, Doherty J, Zhao B, Kinchla AJ, Clark JM, He L. Effectiveness of Commercial and Homemade Washing Agents in Removing Pesticide Residues on and in Apples. Journal of Agricultural and Food Chemistry. 2017;65(44):9744–9752.

3. U.S. Food and Drug Administration. 7 Tips for Cleaning Fruits, Vegetables.

4. Environmental Working Group. EWG’s Shopper’s Guide to Pesticides in Produce. Updated annually.

This article is for educational and informational purposes. It does not replace individualized medical evaluation, diagnosis, or treatment. See the complete Disclaimer.