Allergen program
Food safety is a top priority.At King Arthur, food safety is a top priority. Along with our production partners, we always meet or exceed best-in-class food safety practices when preparing King Arthur Baking Company brand foods, employing methods designed to prevent unintended contact between major allergens and our ingredients, flours, blends, and baking mixes.
The U.S. top 9 allergens
- Wheat
- Soy
- Milk
- Peanuts
- Tree nuts (including coconut)
- Shellfish
- Fish
- Eggs
- Sesame
To prevent cross-contact at our manufacturing facilities we utilize:
- Consistent production equipment cleanouts that occur between runs of products which contain allergens and those which don’t
- Shared equipment testing to ensure no (or a negligible amount of) organic material remains on it after every cleanout
- Allergen testing performed at least quarterly to ensure continual success of equipment cleanout procedures
If any test fails to meet requirements, the equipment undergoes another cleanout and the process repeats until results meet cleanliness specifications.
Because of measures taken, our team is confident that unintended cross-contact doesn’t occur during production or packaging.*
Even so, transparency is a key principle in our Food Philosophy, and we’ve designed this page to clearly provide allergen information.
Certified Gluten-Free
Our certified gluten-free products maintain the “Certified Gluten-Free” badge on front of packaging. These products are certified by the Gluten-Free Certification Organization (a program of the Gluten Intolerance Group), which currently offers the most stringent threshold for testing certification available to us. To meet GFCO’s requirements, products must be tested as gluten-free to less than 10ppm, under the FDA’s standard for gluten-free, which is set to less than 20ppm.
- Signature Flours
- Our Signature Flours are All-Purpose Flour, Bread Flour, Self-Rising Flour, Whole Wheat Flour, White Whole Wheat Flour, Regeneratively-Grown Climate Blend, and their organic versions.
- Apart from wheat, no U.S. top 9 allergens are added to our Signature Flours. Our Signature Flours packaged in paper bags are produced in a facility where wheat is the only top 9 allergen in production. All our flours are Non-GMO, are never bleached or bromated, don’t have vitamin and mineral enrichments added to them, and have no artificial preservatives added.
- Certified Gluten-Free
- Our certified gluten-free products maintain the "Certified Gluten-Free" badge on the front of packaging. These products are certified by the Gluten-Free Certification Organization (a program of the Gluten Intolerance Group), which currently offers the most stringent threshold for testing certification available to us. To meet GFCO’s requirements, products must be tested as gluten-free to less than 10ppm. By using GFCO certification, we exceed the FDA’s standard for gluten-free, which is set to less than 20ppm.
- To display the Certified Gluten-Free badge on our packaging, our manufacturing facilities go through the following quality controls to ensure our products meet the Gluten-Free standard:
- Clean-Out Testing – This test validates that the production lines are adequately cleaned after each production run to remove any trace gluten material. While clean-outs remove other allergens as well, we specifically test for gluten.
- Sampled every clean out by using GFCO approved sampling kit OR
- Every 6 months if certifying clean out process (this requires consecutive tests with no gluten results after first five product changeovers)
- Surveillance Audit – Once per year, our production facilities must undergo a surveillance audit to prove they’re following correct operating procedures for all clean-outs, production runs, and testing.
- Ingredient Testing – Raw ingredients which have greater likelihood for cross-contact in the supply chain are additionally tested based on their risk level. Raw ingredients which pose the highest risk, such as oats, are tested every shipment prior to being run through production lines.
- Finished Product Testing – Finished products are tested for gluten at a rate determined by their ingredients and past testing results of the production facility. This can result in testing as frequent as 3x per production run to once per quarter, with the latter resulting from consecutive negative gluten testing results.
- Proficiency Testing – The labs which perform our gluten testing must periodically undergo proficiency testing with the use of independent samples to guarantee the accuracy of their work.
- Clean-Out Testing – This test validates that the production lines are adequately cleaned after each production run to remove any trace gluten material. While clean-outs remove other allergens as well, we specifically test for gluten.
- Most certified gluten-free products don’t contain any allergen ingredients. An example of limited exceptions include our Gluten-Free Single Serve mixes, some of which contain either soy or milk.
- Many certified gluten-free products share production equipment with some allergens, including eggs, milk, soy, and wheat. Almond Flour, Coconut Flour, and Paleo Flour are produced separately.
Certified Gluten-Free Flours
Produced on equipment that also processes wheat, milk, soy, eggs, coconut, and almonds.Measure For Measure 1 lb. 0-71012-07522 Measure For Measure 3 lb. 0-71012-07523 Measure For Measure 5 lb. 0-71012-07526 Gluten Free All-Purpose Flour 24 oz. 0-71012-07502 Certified Gluten-Free Flours
Produced on equipment that also processes almonds and coconut.Organic Masa Harina 2 lbs. 0-71012-06013 Certified Gluten-Free Flours – Grain Free
Produced on equipment that also processes wheat, milk, soy, eggs, coconut, and almonds.Coconut Flour 0-71012-10702 Contains: Coconut Paleo Baking Flour 0-71012-06003 Contains: Almonds, Coconut Almond Flour 0-71012-10701 Contains: Almonds Certified Gluten-Free Mixes
Produced on equipment that also processes wheat, milk, soy, eggs, coconut, and almonds.AP Baking Mix 24 oz. 0-71012-07511 All-Purpose Keto Muffin Mix 10 oz. 0-71012-10248 Banana Bread Mix 16 oz. 0-71012-10546 Bread Mix 18.25 oz. 0-71012-07500 Brownie Mix 17 oz. 0-71012-07508 Brownie Mix 2-pack 0-71012-07530 Chocolate Cake Mix 22 oz. 0-71012-07505 Chocolate Keto Cake Mix 9.25 oz. 0-71012-10461 Confetti Cake Mix 18 oz. 0-71012-07535 Cookie Mix 16 oz. 0-71012-07504 Cornbread Mix 14 oz. 0-71012-07524 Doughnut Mix 15 oz. 0-71012-40390 Gingerbread Mix 13 oz. 0-71012-10455 Muffin Mix 16 oz. 0-71012-07509 Pancake Mix 15 oz. 0-71012-07503 Pie Crust Mix 14 oz. 0-71012-07525 Protein Pancake Mix 12 oz. 0-71012-06016 Pumpkin Bread Mix 12 oz. 0-71012-10549 Scone Mix 12 oz. 0-71012-10081 Sugar Cookie Mix 12 oz. 0-71012-10324 Yellow Cake Mix 22 oz. 0-71012-07510 Yellow Keto Cake Mix 9 oz. 0-71012-10460 Certified Gluten-Free Single Serve Dessert Cups
Produced on equipment that also processes egg, milk, soy, and wheat. These products also contain allergens as noted.Brownie Mix 2 oz. 0-71012-07528 Contains: Soy Choc Chip Cookie Mix 2 oz. 0-71012-07529 Contains: Soy Confetti Cake Mix 2.25 oz. 0-71012-07532 Contains: Milk Choc Cake with Salted Caramel 2.25 oz. 0-71012-07531 Contains: Milk
- Gluten-Free Pizza Flour & Gluten-Free Bread Flour
Our NEW Gluten-Free Pizza Flour and Gluten-Free Bread Flour is marked with a “Gluten-Free” badge on the packaging which is our guarantee to you that our products meet FDA guidelines. This means they test to less than 20ppm gluten.To be sure our products meet the standard we use ingredients that are verified gluten-free by the manufacturer.
When we use gluten-free wheat starch as an ingredient, it goes through additional testing in a certified lab using both the R5 ELISA Sandwich and R5 ELISA Competitive methods.
Once produced, the final Gluten-Free Pizza Flour and Gluten-Free Bread Flour are tested again to ensure a strict gluten-free standard of less than 20ppm, with a target of less than 10ppm, is met for the finished product.
We follow the same stringent practices as our Certified Gluten-Free products outlined in the Certified Gluten-Free section.
Produced on equipment that also processes wheat, milk, soy, eggs, coconut, and almonds.
Gluten Free Pizza Flour 2 lb. 0-71012-07537 Contains: Wheat Gluten Free Bread Flour 2 lb. 0-71012-30534 Contains: Wheat - Other Specialty King Arthur Brand Ingredients (not noted above)
King Arthur Baking Company brand items that are not part of our Signature Flour or Certified Gluten-Free lines are produced on equipment that also processes wheat, eggs, milk, soy, almonds, pecans, coconut, and sesame.
Exceptions are:
- King Arthur brand vanillas, maple syrups, and Fiori di Sicilia do not share production equipment with any allergens.
- Potato Pancakes are produced on equipment that also processes shellfish, eggs, fish, milk, soy, tree nuts, and wheat.
Any allergens that are used in production of the product will always be labeled with a "Contains:" statement on package or the allergen directly stated in the ingredient statement. We make digital versions of this packaging available on individual product pages as a viewable image.
- Items from other brands sold through KingArthurBaking.com
Please refer to the manufacturer for items not produced by King Arthur Baking Company for the most accurate information.
Our cross-contact prevention measures focus on the U.S. top 9 allergens, but we understand that some customers may wish to avoid other unmentioned ingredients. While we’re currently unable to answer broad questions regarding other ingredients (e.g., ‘Do any of your products share equipment with mustard?’) or identify other ingredients which could share production equipment with our certified gluten-free products, we do our best to answer ingredient questions about individual products when asked. Please feel encouraged to Contact Us with questions.
*Because we don’t currently test the products themselves for the presence of allergens (excepting gluten in our certified gluten-free line), we’re simply unable to offer a 100% guarantee against the possibility of contact outside of production. The safety of our customers is a top priority for our team, and we always recommend speaking to a doctor or dietician whenever a customer has concerns about a product being right for them.
