The Hidden Gluten in Your Spice Rack and How to Avoid It

The Hidden Gluten in Your Spice Rack and How to Avoid It

Category: Know Your Ingredients  |  Read time: 8 minutes  |  Tags: allergen safety, gluten free, coeliac, spices, label reading

You have switched to gluten free bread. You are reading pasta labels. You have memorised which soy sauces are safe. And then you make a roast chicken with a pre mixed spice rub and your body reminds you, emphatically, that you missed something.

The spice rack is one of the most overlooked sources of hidden gluten in a coeliac or gluten intolerant household. Not because spices contain gluten. Most individual spices are naturally gluten free. The problem lies in what gets added to them and where they are made.

This is what you need to know.

Why Would Gluten Be in Spices?

Pure, single ingredient spices such as cumin, paprika, turmeric, and coriander are naturally gluten free. The problem arises in three specific ways:

1. Anti Caking Agents and Fillers

To prevent spice blends from clumping in humid conditions, manufacturers add anti caking agents. Some of these, including wheat starch and certain modified food starches, contain gluten. These are not always prominently listed and can hide under terms like starch or thickener without specifying the source.

2. Flavour Carriers and Maltodextrin

Some spice blends, particularly commercial seasoning sachets and stock based spice mixes, use maltodextrin as a carrier for concentrated flavours. Maltodextrin derived from wheat is a gluten risk, and it is present in more seasoning products than most people realise. Look for wheat maltodextrin specifically, or choose products that specify corn derived maltodextrin.

3. Cross Contamination in Manufacturing

This is the most invisible risk. A spice facility that also processes wheat, barley, or rye products introduces cross contamination risk even if no gluten containing ingredient is intentionally added. For people with coeliac disease, where even trace amounts of gluten cause damage, a may contain gluten declaration on a spice label is not a caution to ignore.

What to Look for on Spice Labels

When assessing whether a spice blend is safe, read the full ingredient list rather than just the front of the packet, and look for:

• Any form of wheat, barley, rye, oat, or malt in the ingredient list
• Starch or modified starch without a named source. Assume wheat unless stated otherwise
• Natural flavours, which can occasionally be wheat derived
• May contain gluten, made in a facility that processes wheat, or similar advisory statements
• The Coeliac Australia crossed grain symbol or equivalent certified gluten free mark

The Problem with Gluten Free Claims on Spices

In Australia, a product labelled gluten free must contain no detectable gluten. That is less than 3 parts per million under current FSANZ standards. This is a meaningful standard for most people with gluten intolerance.

However, not all products that are safe for gluten intolerant people carry this label, and not all products without it are unsafe. The certification process costs money, and small producers often do not pursue it even when their products are made to a gluten free standard.

This is why we developed the Grandma’s Provisions spice range. We know exactly what goes into every blend, exactly where our spices are sourced, and exactly how they are processed. No fillers, no hidden additives, no cross contamination risk from shared facilities.

The Spices Most Likely to Cause Problems

Based on ingredient analysis and coeliac community reports, these are the spice products to scrutinise most carefully:

• Mixed seasoning sachets such as taco seasoning, fajita mix, and gravy blends, which frequently contain wheat starch
• Garlic salt and onion salt, where anti caking agents are common
• Curry powder blends, as some commercial versions use flour as a filler
• Chicken salt, an Australian staple that often contains wheat derived maltodextrin
• Stock powder and bouillon based spice mixes, which almost universally contain gluten unless specifically labelled otherwise

How to Build a Certified Allergen Safe Spice Rack

The safest approach for a coeliac household is straightforward:

• Buy single ingredient spices where possible and blend your own mixes
• Choose spice ranges from dedicated allergen safe producers with clear manufacturing declarations
• Replace any unmarked or unverified blends in your current rack. If you cannot confirm the source, replace it
• Store your verified spices separately from any conventional products in a shared household

The [Grandma’s Provisions Spice Range] was built specifically for this problem. Every blend in our range is made without fillers, wheat starch, or gluten containing additives, and produced with allergen safety as a non negotiable standard rather than an afterthought.