The Dirty Dozen and How to Grow Cleaner Food At Home

It’s a dilemma in the produce aisle. You want to eat clean and healthy—you know you should. And here you are, wondering: Should I buy organic? Does it really matter?

When it comes to pesticide residues on produce, eating organic does make a difference. Organically grown fruits and vegetables have far fewer pesticide inputs than those conventionally grown.

But what about those conventional products—are they safe? Yes, but they may have higher levels of pesticide residue.

Each year, the Environmental Working Group (EWG) publishes lists of the fruits and vegetables with the highest and lowest levels of pesticide residues, known as the Dirty Dozen and the Clean Fifteen.

These lists aren’t meant to scare you into avoiding specific items, but rather to provide information so you can make informed choices (and know what to wash well).

But here’s the thing: whether you buy organic or not, the most reliable way to reduce pesticide exposure is to grow your own—even a little can make a difference.

What’s on the Dirty Dozen and Clean Fifteen This Year?

The EWG list is based on publicly available data from the United States Department of Agriculture (USDA). The USDA leads the Pesticide Data Program (PDP), a national initiative that samples food products and tracks pesticide residue levels. EWG uses this data to rank the items on the Dirty Dozen list.

The Dirty Dozen: Of the 47 items analyzed, these 12 had the highest levels of pesticide residues. These products are often thin-skinned, eaten raw, or difficult to wash thoroughly.

1. Spinach
2. Kale, Collard, and Mustard Greens
3. Strawberries
4. Grapes
5. Nectarines
6. Peaches
7. Cherries
8. Apples
9. Blackberries
10. Pears
11. Potatoes
12. Blueberries

The Clean Fifteen: These 15 items had the lowest amounts of pesticide residues. They are often thick-skinned or naturally protected in some way.

1. Pineapple
2. Sweet corn (fresh/frozen)
3. Avocados
4. Papaya
5. Onions
6. Sweet peas (frozen)
7. Asparagus
8. Cabbage
9. Cauliflower
10. Watermelon
11. Mangos
12. Bananas
13. Carrots
14. Mushrooms
15. Kiwi

Now, before you stop eating fruits and vegetables altogether, it’s important to keep this in context.

According to the USDA Pesticide Data Report, more than 99 percent of the samples tested had residues well below the safety standard established by the Environmental Protection Agency.

These lists don’t mean the produce is unsafe; they highlight relative differences—not danger levels.

Why Some Crops Carry More Residue

Both conventional and organic produce may be treated with pesticides, but the types differ significantly. Organic growers can use only naturally derived (non-synthetic) products, and many rely on integrated pest management practices.

So why do some crops carry more residue? It depends on the crop, how it’s grown, and pest pressure.

Fruits and vegetables with thin skins tend to absorb or retain more chemicals—this includes many berries and leafy greens. Other crops are grown close to the soil, such as strawberries and spinach. Heavy pest pressure can lead to more frequent spraying to ensure a harvest.

So, what’s the solution to cleaner eating? For a few items on the list, it’s simple: grow your own.

Grow Your Own “Dirty Dozen”

Growing your own food doesn’t mean becoming a full-time farmer. Even a small garden or a few patio pots can turn a couple of “dirty” items into fresh, clean, and healthy harvests.

Growing your own gives you control over what goes into your soil and onto your plants. It removes the guesswork—and often improves flavor along the way.

For our region, some of the easiest swaps from grocery-store “dirty” to garden-fresh clean are leafy greens:

• Spinach (#1 on the list) grows well and can be planted in both spring and fall.
• Lettuces grow quickly and provide multiple harvests into early summer.
• Kale is hardy, productive, and thrives in cool weather.

A few high-impact crops that are often expensive to buy—but easy to grow—include:

• Strawberries. Commercially-grown berries carry higher levels of pesticide residues, but are easy to grow and return year after year.
• Green beans. Productive, low-effort, and space-efficient.
• Peppers. They require warmth and patience, but the payoff is worth it

And don’t forget small fruits like raspberries, blackberries, and blueberries, along with dwarf fruit trees.  Many fit easily into small garden spaces. Once you taste a sun-warmed, homegrown berry, store-bought doesn’t compare.

Don’t Ignore the Clean Fifteen

While the Clean Fifteen typically have lower pesticide residues, that doesn’t mean zero. Don’t skip growing these just because they’re considered “clean.”

You’ll still gain the benefits of freshness, flavor, and full control over how your food is grown.

A few standouts for our region include onions (and all alliums like leeks and scallions), carrots, and corn.

Practical Tips for a Cleaner Home Growing

Your plants are only as healthy as your soil, so start with soil rich in organic matter, such as compost. Healthy soil supports strong plants and reduces the need for additional inputs.

Choose plant varieties suited to our shorter growing season—look for types that mature in 90 days or less.

Include flowers in your garden to attract pollinators and beneficial insects. These natural helpers reduce the need for pest control.

It’s also wise to have a few pest-management strategies on hand, such as row covers, insect netting, hand-picking pests, or, if needed, OMRI-approved products.

These simple practices will set you up for success in clean, productive gardening.

Small Garden, Big Impact

Eating well doesn’t have to be all-or-nothing. You don’t need to grow everything on the Dirty Dozen—or avoid everything on it—to make a meaningful change.

Start with a few crops. Grow what you can. Pay attention to what matters most to you.

Because in the end, the real benefit isn’t just reducing pesticide exposure—it’s gaining confidence in how your food is grown. And that’s something no label in the produce aisle can give you.