Is Tomato Paste Naturally Gluten-Free?
Tomato paste is a concentrated product made from cooked-down tomatoes, typically containing only tomatoes as the sole ingredient. In its pure, unseasoned form, tomato paste is naturally free of gluten. Gluten is a protein found in wheat, barley, and rye, none of which are components of a standard tomato paste recipe. The potential for gluten to enter the product can arise from several factors, including added ingredients for flavor or thickening, and cross-contamination during manufacturing.
The Importance of Label Reading
While the base product is safe, it is crucial for individuals with celiac disease or severe gluten sensitivity to carefully check product labels. Some brands add seasonings, flavors, or modified starches that could contain hidden gluten. For example, Contadina once produced a seasoned tomato paste that was not gluten-free, despite their standard version being safe. A "certified gluten-free" label is the most reliable indicator of safety, as it confirms the product has been tested to contain less than 20 parts per million of gluten. Products not certified may still be gluten-free by ingredients but carry a higher risk of cross-contamination from a shared manufacturing facility.
Trusted Gluten-Free Tomato Paste Brands
Brands with "Certified Gluten-Free" Labeling
- Muir Glen: A well-known brand that clearly labels its tomato paste as "A gluten-free food". They also use organic ingredients. Their products are made from vine-ripened California tomatoes and are verified by the Non-GMO Project.
- Bionaturae: This brand offers an organic tomato paste that is explicitly certified gluten-free. Sourced from Italy, it is also non-GMO and made without added salt, making it a clean and safe option.
- Cento: Cento produces several tomato pastes that are labeled gluten-free, providing an extra layer of assurance for consumers.
- Red Gold: This brand labels its tomato paste as gluten-free, confirming its safety for those avoiding gluten.
Brands that are Gluten-Free by Ingredient
- Mutti: This Italian brand's double-concentrated tomato paste is marketed as being vegan and gluten-free, made from 100% Italian tomatoes with no additives. It is important to check the specific product for confirmation.
- Del Monte & Contadina: As of recent reports, all plain tomato paste products from these brands are considered gluten-free based on their ingredients. However, flavored variants or changes in manufacturing processes mean checking labels is always the safest practice.
- Hunt's: According to some sources, all Hunt's plain tomato products are gluten-free. As always, a quick check of the label for added seasonings is prudent.
- Great Value (Walmart): Some consumers on celiac forums have reported that Great Value brand tomato paste is labeled gluten-free, but as a store brand, it is essential to check the specific can as suppliers or formulations can change.
Comparison Table of Gluten-Free Tomato Paste Brands
| Brand | Gluten-Free Labeling | Organic | Notes | 
|---|---|---|---|
| Muir Glen | Certified Gluten-Free | Yes | Made from California tomatoes; also Non-GMO Project verified. | 
| Bionaturae | Certified Gluten-Free | Yes | Italian-made, no added salt, packed in glass. | 
| Cento | Certified Gluten-Free | Varies | Several varieties carry a gluten-free label. | 
| Red Gold | Certified Gluten-Free | Varies | Explicitly labeled as gluten-free. | 
| Mutti | Gluten-Free by ingredient | Yes (for some) | Italian-made, check for specific product claims. | 
| Del Monte | Gluten-Free by ingredient | No | Typically safe, but always verify ingredients, especially for seasoned products. | 
| Hunt's | Gluten-Free by ingredient | No | Generally safe, but label checking is recommended. | 
Potential Risks and How to Mitigate Them
Even with naturally gluten-free products, there are two primary risks to consider:
- Cross-Contamination: The product may be processed in a facility that also handles gluten-containing ingredients. While brands that certify their products as gluten-free have procedures to prevent this, those without certification may not. If you have a severe allergy or sensitivity, certified products are the safest choice.
- Added Ingredients: Seasoned or flavored tomato pastes are the most common culprits for hidden gluten. Thickeners like wheat flour can be used, and some spice mixes may contain gluten. Always check the ingredients list for terms like "wheat," "barley," "rye," or a specific allergen warning. The National Celiac Association provides excellent resources for navigating ingredient lists.
Conclusion
While most plain tomato paste is inherently gluten-free, selecting a safe option requires careful label scrutiny, especially for those with celiac disease. Certified gluten-free brands like Muir Glen, Bionaturae, Cento, and Red Gold provide the highest level of assurance. For other brands, checking the ingredients list for potential gluten sources and cross-contamination warnings is essential. By staying informed, you can confidently choose a delicious and safe tomato paste for all your culinary needs.