Running water is the single most effective way to clean fresh produce at home. The FDA recommends gently rubbing fruits and vegetables under plain running water, with no soap, detergent, or special wash required. That simple step removes more pesticide residue than most alternatives, and a few extra techniques for specific types of produce can make a real difference.
Why Running Water Works Best
A comparative study on leafy vegetables found that running water removed an average of 77% of pesticide residues, outperforming vinegar (51%), baking soda (52%), detergent (44%), and even soaking in still water (51%). The physical force of water flowing over the surface does most of the work, dislodging both chemical residues and surface bacteria more effectively than passive soaking.
This means you don’t need to buy commercial produce washes. Research comparing baking soda solution, tap water, and bleach found that baking soda was the top performer for surface pesticide removal on apples, but plain tap water still did meaningful work. The expensive sprays marketed for fruits and vegetables haven’t been shown to outperform these simpler methods.
The Basic Method for All Produce
Start by washing your hands with soap and warm water for at least 20 seconds. Then follow these steps:
- Rinse before you peel. Dirt and bacteria on the outside of a potato or apple will transfer to the flesh via your knife or peeler if you skip this step.
- Rub gently under running water. Hold the produce under the tap and use your fingers to rub the entire surface. No soap needed.
- Cut away damaged areas. Bruised or broken spots can harbor bacteria, so trim them before eating.
- Dry with a clean cloth or paper towel. This step further reduces any remaining bacteria on the surface.
Never use dish soap, household detergent, or bleach on produce. Fruits and vegetables are porous, and these products can absorb into the skin, leaving residues you’ll end up eating.
Firm Produce: Melons, Cucumbers, Root Vegetables
Firm-skinned produce needs scrubbing with a clean vegetable brush under running water. This is especially important for anything you’ll cut through, like melons and cucumbers. The reason is cross-contamination: when you slice a cantaloupe, the knife blade drags bacteria from the rind directly into the flesh you’re about to eat. FDA guidelines specifically call out melons as a produce category where scrubbing matters.
Root vegetables like potatoes, carrots, and beets benefit from the same treatment. A stiff brush loosens soil trapped in crevices that your fingers can’t reach. Rinse thoroughly after scrubbing.
Leafy Greens and Fresh Herbs
Lettuce, spinach, kale, and similar greens need a slightly different approach because their many surfaces trap grit and dirt. If your lettuce has a core (like iceberg), remove it first. Discard the outermost leaves of any head of lettuce or cabbage, since these are most exposed to contamination.
For loose leaves like mesclun or baby spinach, place them in a colander or salad spinner basket, hold it under cold running water, and toss the leaves around to expose all surfaces. Repeat this a second time. The Academy of Nutrition and Dietetics advises against filling a sink with water and soaking greens, since that just redistributes contaminants rather than washing them away.
Drying matters here more than with any other produce. Wet greens wilt faster in the fridge and dilute salad dressings. Pat them dry with clean towels or spin them in a salad spinner. Use a clean knife for chopping after the greens are washed and dried to avoid reintroducing bacteria from your cutting board.
One important exception: greens labeled “pre-washed” or “ready-to-eat” don’t need a second wash. These have already been processed in a facility designed for that purpose.
Berries and Delicate Fruit
Berries are uniquely fragile and prone to mold, so timing matters. Don’t wash berries until you’re ready to eat them. Washing and then storing them while damp traps moisture and creates ideal conditions for mold growth.
When you’re ready to eat, place berries in a colander and rinse gently under cold running water. Be especially careful with raspberries and blackberries, which crush easily. Avoid letting berries sit in water, as they’ll absorb it and turn soggy.
If you want extra protection against mold spores, a vinegar rinse works well for berries. Mix three parts cold water with one part white vinegar in a bowl, gently swirl the berries for about 30 seconds, then rinse with fresh water. The vinegar kills mold spores and bacteria on the surface without affecting flavor. Dry the berries thoroughly on a clean towel before storing them in a ventilated container in the fridge.
If you must wash berries ahead of time, drying them completely is non-negotiable. Spread them on a towel, let them air dry, and store in a container lined with a paper towel to absorb any remaining moisture.
The Baking Soda Soak for Pesticide Removal
If you want to go beyond running water for pesticide removal, a baking soda solution is the most effective home method tested in research. A study published in the Journal of Agricultural and Food Chemistry found that soaking apples in a baking soda solution completely removed surface residues of two common pesticides, outperforming both tap water and diluted bleach.
The method is straightforward: dissolve about one teaspoon of baking soda per two cups of water, submerge your produce, and soak for 12 to 15 minutes. Then rinse under running tap water. This works well for apples, pears, stone fruits, and other items sturdy enough to handle a soak. It’s less practical for delicate berries or leafy greens.
One caveat: baking soda removes pesticides that sit on the surface. Residues that have already penetrated the skin can’t be washed off by any method. The study showed that pesticides applied to apples and left for 24 hours were fully removed from the surface but not from deeper in the peel. This is one reason peeling remains the most thorough option for reducing pesticide exposure on fruits like apples, though you lose fiber and nutrients in the process.
What Not to Do
Skip the soap. The FDA explicitly states there’s no need for soap or commercial produce washes. Soap leaves residues that can cause nausea and digestive upset, and fruits and vegetables absorb these chemicals more readily than you’d expect. The same goes for household disinfectants and bleach solutions, which are designed for hard surfaces, not food.
Don’t soak produce in a filled sink. Sinks harbor bacteria, and standing water lets contaminants from one item spread to everything else in the bowl. Running water is consistently more effective because it carries debris away rather than recirculating it. The one exception is a targeted baking soda soak in a clean bowl for pesticide removal, where the chemistry of the solution is doing the work.
Don’t wash produce before storing it (unless you’re going to dry it thoroughly). Moisture accelerates spoilage for nearly every type of fresh produce. Wash just before you eat or cook.