Bob’s Red Mill Gluten Free 1-to-1 Baking Flour is a certified gluten-free rice-flour blend.
Yes. Bob’s Red Mill Gluten Free 1-to-1 Baking Flour is a purpose-built blend of sweet white rice flour, brown rice flour, potato starch, sorghum, tapioca flour, and xanthan gum — no wheat, barley, or rye. It is part of Bob’s Red Mill’s dedicated gluten-free line, labeled gluten-free, and tested to the FDA <20 ppm standard, so it is celiac-safe. Confirm the package says “Gluten Free 1-to-1” — the brand’s conventional flours are not the same.
Bob’s Red Mill Gluten Free 1-to-1 Baking Flour is gluten-free and celiac-safe. It’s a dedicated gluten-free product — a rice-flour blend designed to swap straight in for wheat flour. The only thing to get right is grabbing the correct bag: Bob’s Red Mill also makes conventional flours that are not gluten-free.
What’s in It
Bob’s Red Mill Gluten Free 1-to-1 Baking Flour is a blend of sweet white rice flour, whole grain brown rice flour, potato starch, whole grain sorghum flour, tapioca flour, and xanthan gum. Per FDA labeling rules, the gluten-containing grains are wheat, barley, rye, and their hybrids — none of those blend ingredients is on that list. It is part of Bob’s Red Mill’s dedicated gluten-free line, labeled gluten-free and tested to meet the gluten-free standard.
Cross-Contamination Risk
Manufacturing
Low
- Dedicated gluten-free line, tested to FDA <20 ppm.
- Rice/potato/tapioca/sorghum + xanthan gum; no grain gluten.
- Labeled gluten-free on the package.
Bakery
Low
- The flour itself is celiac-safe.
- A shared wheat-flour kitchen still has airborne wheat.
- Bake on clean surfaces with clean tools.
Home
Low
- Store away from wheat flour; use a clean scoop.
- Confirm it’s the “Gluten Free 1-to-1” bag.
Bob’s Red Mill Flours — GF Status
- Gluten Free 1-to-1 Baking Flour — gluten-free (certified/labeled, celiac-safe)
- Other Bob’s Red Mill gluten-free line products — gluten-free (check the label)
- Bob’s Red Mill standard all-purpose / conventional flours — NOT gluten-free
- Bob’s Red Mill standard soy flour — NOT in the gluten-free line
- A baked good made with 1-to-1 + a non-GF add-in — verify the other ingredients
What to Look For — Or Avoid
- Package explicitly says “Gluten Free 1-to-1 Baking Flour”
- Blue gluten-free line packaging; gluten-free label
- Rice/potato/tapioca/sorghum blend with xanthan gum
- Bob’s Red Mill conventional/standard flours (not GF)
- Confusing it with standard all-purpose or soy flour
- Non-GF add-ins in the recipe you make with it
Frequently Asked Questions
Is Bob’s Red Mill 1-to-1 Baking Flour gluten-free?
Yes. Bob’s Red Mill Gluten Free 1-to-1 Baking Flour is a rice-flour-based blend with potato/tapioca starch, sorghum, and xanthan gum — no wheat, barley, or rye. It is part of Bob’s Red Mill’s dedicated gluten-free line, labeled gluten-free, and tested to the FDA <20 ppm standard.
Is it safe for celiac disease?
Yes. It is a certified/labeled gluten-free product from Bob’s Red Mill’s dedicated gluten-free line, R5-ELISA tested to meet the gluten-free standard, so it is celiac-safe. The finished baked good’s safety then depends on the other ingredients you add.
How is it different from regular Bob’s Red Mill flour?
Bob’s Red Mill also sells conventional flours, including a standard all-purpose flour and standard soy flour, which are NOT gluten-free. Only the products in the dedicated gluten-free line — like Gluten Free 1-to-1 — are gluten-free. Confirm the “Gluten Free 1-to-1” label.
Does it have xanthan gum already in it?
Yes. Gluten Free 1-to-1 Baking Flour includes xanthan gum in the blend, so many recipes do not need additional xanthan gum. Xanthan gum is gluten-free, so its inclusion does not affect the gluten-free status.
Can I substitute it 1:1 for wheat flour?
It is designed to substitute 1:1 for wheat flour by volume in many recipes. It is gluten-free, so swapping it in does not introduce gluten — just ensure every other ingredient in the recipe is also gluten-free.
Is the rice flour in it gluten-free?
Yes. Rice (sweet white rice and brown rice) is not a gluten-containing grain, and the rest of the blend — potato starch, sorghum, tapioca, xanthan gum — is also gluten-free. The whole blend is tested and labeled gluten-free.