What's Really in Your Spices and Seasonings? Hidden Chemicals Most Don't Know About

Did you know that many of the spices and seasonings sitting in your pantry right now may have been treated with chemicals that aren't even listed on the label?

When we started digging deeper into how commercial seasonings are produced, we were surprised by what we learned, and it inspired us to take a different approach.

In this post we're sharing what we've uncovered about common industry practices in the spice world, the chemicals that are often hidden in spices and seasonings, and why it matters for anyone committed to truly natural, chemical-free eating. Even if you're already reading labels carefully, this one might surprise you.

Chemical Additives in Spices You Can Actually See on the Label

Let's start with what you can see. Many commercial seasonings include openly declared additives. They're added for practical reasons, but they still compromise the purity of what should be a simple, natural product.

The most common are anti-caking agents, which are added to prevent powders from clumping together on the shelf. You'll see these listed as:

• Silicon dioxide: A common industrial anti-clumping agent, essentially powdered silica
  
• Calcium silicate
  
• Sodium aluminosilicate or tricalcium phosphate

These show up frequently in spice blends, garlic powder, onion powder, chili mixes, and even plain table salt. Some blends also include maltodextrin (a filler), MSG (a flavor enhancer), or preservatives like BHA and BHT.

Here's the thing: none of these serve any flavor or nutritional purpose. They're functional extras added for manufacturing convenience. For anyone trying to keep their pantry truly clean and additive-free, even these "visible" additives are worth avoiding.

The Hidden Treatment Most People Don't Know About: Ethylene Oxide

Now here's where things get interesting. Beyond what's listed on the label, many spices and herbs go through a sterilization process using a gas called ethylene oxide (ETO). This is used to kill microbes and extend shelf life, particularly during drying or post-harvest processing in producing countries.

Here are the facts:

• Ethylene oxide is classified as a Group 1 carcinogen by the International Agency for Research on Cancer (IARC)
  
• Residues of ETO and its byproduct 2-chloroethanol can remain on spices even after processing
  
• In the U.S., ETO is still permitted under certain limits, though regulations vary widely around the world

For context, the European Union has strict rules around ETO with very low maximum residue levels, often approaching zero tolerance for avoidable residues, and bans its use in food additives altogether.

The most concerning part? Even a completely "clean" ingredient list—one that just says "oregano" or "paprika"—doesn't tell you whether ETO was used. These treatments don't have to be disclosed, so consumers have no way of knowing unless a brand specifically tests for and avoids them.

Why Freshly Milled Spices Make a Difference

There's another issue with commercial spices that doesn't get talked about enough: timing.

Most commercial spices are ground long before they ever reach the store shelf—sometimes months or even years earlier. When a spice gets ground, it gets exposed to air, light, and moisture. This causes the volatile essential oils (the compounds responsible for all that rich aroma and flavor) to evaporate or degrade quickly.

Studies and experts note that ground spices can lose 40 to 60% of their flavor compounds within just 6 to 12 months, while whole spices retain them much longer. That jar of cumin or garlic powder sitting in your pantry might look perfectly fine, but it could be delivering a fraction of the flavor and potency it once had.

Freshly milled spices—ground and bottled right away—lock in those essential oils and deliver noticeably better flavor from the first shake to the last.

Why We Decided to Do Things Differently

Learning about hidden chemical treatments, unnecessary additives, and the flavor loss that comes from sitting on a shelf for months made us realize that most commercially available seasonings fall short of truly natural standards—even the ones that seem simple and pure on the surface.

As Naturalites, we believe that truly natural eating extends all the way to the spices and seasonings you cook with every day. So we made a commitment: our seasonings will be chemical-free (no ETO or similar treatments, no anti-caking agents, no preservatives) and freshly milled to lock in maximum flavor and aroma from the start.

We're excited to be creating blends that fully align with Naturalite principles—pure, potent, and free from the compromises that are so common in the industry.

Stay Tuned for What's Coming

True natural eating starts with knowing what's really in (and on) your food, even the spices that seem the most innocent.

We'll be announcing details about the launch of our first seasoning blend soon, and we can't wait to share it with you. In the meantime, keep reading labels, look for brands that are transparent about their sourcing and processing, and choose freshly milled where you can. Your meals and your body will thank you!