Can You Use Baking Soda To Clean Strawberries? | The Soak

You probably do what most people do: give strawberries a quick splash under the faucet and toss them into a bowl. Maybe you’ve wondered if that’s enough, especially after seeing reports about pesticide residues on conventionally grown berries.

The short answer is yes, you can use baking soda to clean strawberries. Research from food science labs shows that a baking soda soak can remove a large fraction of certain pesticides. But the method matters, and it isn’t the only option worth considering.

How Baking Soda Works on Strawberry Pesticides

Baking soda is sodium bicarbonate, a mildly alkaline compound. When you dissolve a few teaspoons in water, the solution creates a slightly basic environment that can help break down some pesticide molecules.

A study from the University of Illinois Extension found that a baking soda soak reduced pesticide residues on apples by 66.7 to 98.9 percent. Strawberries are more delicate and have a porous surface, so the effectiveness may vary somewhat, but the same chemical principle applies.

The National Pesticide Information Center (NPIC) points out that holding produce under flowing running water in a strainer removes more pesticide than simply dunking the fruit. That means even without baking soda, a thorough rinse does a good job.

Why People Try Baking Soda Over Plain Water

Many consumers worry that water alone isn’t cutting it, especially for berries that top the “Dirty Dozen” list. Others want to extend the shelf life of their strawberries or avoid soap residue from commercial washes. Here’s what drives the switch:

• Pesticide anxiety: Strawberries frequently rank among the most pesticide-laden crops in annual reports from the Environmental Working Group. A baking soda soak feels like an extra safety net.
• Texture concerns: In a side-by-side test from Serious Eats, strawberries washed in a baking soda solution stayed mold-free for a week but turned noticeably softer than those washed in vinegar, which stayed firm.
• Soap avoidance: The FDA explicitly advises against using soap, detergent, or commercial produce washes because they haven’t been proven more effective than water. Baking soda is not soap, so some see it as a natural middle ground.
• Cost and simplicity: Baking soda is cheap and already in most kitchens. No special equipment needed beyond a bowl and a strainer.

Each reason has some evidence behind it, though none is a guarantee. The choice often comes down to how much effort you’re willing to put into prep.

What the Research Says About Baking Soda Effectiveness

Per the University of Illinois Extension’s guide on baking soda pesticide reduction, the method works best when you use a ratio of a few teaspoons of baking soda per large bowl of water and soak the fruit for about 15 minutes. The same extension expert, Dr. Xu, notes that this process can remove between two-thirds and nearly all of certain pesticide residues on apple surfaces, and similar chemistry applies to strawberries.

The Organic Center’s produce wash guide adds that baking soda outperformed bleach-and-water treatments on surface pesticides. Bleach failed to remove residues effectively, while baking soda did.

The numbers in the table come from controlled lab trials. Real-world results depend on the type of pesticide, how long the fruit was soaked, and how thoroughly you rinse afterward.

How to Wash Strawberries With Baking Soda

If you want to try the baking soda method, follow these steps for the best balance of cleanliness and fruit quality:

1. Mix the solution: Add about one tablespoon of baking soda to four cups of cool water in a large bowl. Stir until dissolved. (Some home cooks recommend this ratio, though the Illinois Extension simply says “a few teaspoons per large bowl.”)
2. Soak gently: Place the strawberries in the solution and let them sit for 10 to 15 minutes. Don’t scrub or rub the berries; the alkaline water does the work.
3. Rinse thoroughly: Transfer the berries to a strainer and rinse under cool running water for at least 30 seconds to remove any baking soda residue.
4. Dry completely: Pat the strawberries dry with a clean kitchen towel or paper towel. Moisture left on the surface speeds up mold growth.
5. Store properly: Place the dry berries in a single layer on a paper-towel-lined container, then cover loosely. This helps them last three to five days in the fridge.

Some sources claim you don’t need to rinse after a baking soda soak, but rinsing removes any residual sodium bicarbonate taste and is consistent with general produce safety guidance.

Baking Soda vs. Vinegar vs. Salt: Which Works Best?

A peer-reviewed study published in the journal Foods and hosted by NIH/PMC directly compared washing methods for strawberry insecticide removal. The vinegar salt pesticide removal study found that a 3% vinegar solution removed 48.7% of four common insecticides, and a 3% salt solution removed 45.7%. Baking soda was not tested in that particular trial, but earlier research from Illinois and The Organic Center shows it can achieve higher reduction percentages on certain fruits.

Texture is another factor. In home kitchen tests, vinegar-washed strawberries stayed firmer than baking soda–washed ones, possibly because acetic acid helps prevent cell wall breakdown. Salt water can leave a lingering salty taste if not rinsed well.

The Bottom Line

Using baking soda to clean strawberries is a reasonable extra step if you’re concerned about pesticide residues, and research supports its effectiveness for certain chemicals. That said, a thorough rinse under running water remains the official FDA recommendation and works well for most everyday use. The choice comes down to your comfort level, how much time you have, and whether you mind slightly softer berries.

If you’re buying organic strawberries or washing fruit for a young child, a baking soda soak offers added peace of mind. For the best advice on food safety and your specific household, a registered dietitian can help you weigh the trade-offs between washing methods, pesticide exposure, and fruit texture.