Likely Safe High confidence

Bob's Red Mill Arrowroot Flour, 16 oz: Gluten-Free Thickener and Cornstarch Substitute

Bob's Red Mill ★★★★★ 4.8 · 1,631 reviews

Arrowroot starch is inherently gluten-free, and the product data label it gluten-free with arrowroot as the sole ingredient. Formal GF certification is not evidenced in the provided sources. Cross-contact concerns appear in online discussions but are not supported by verified testing data in this dataset.

🌾 Gluten-free labeled Kosher ⚠ No 3rd-party cert
$7.22
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Celiac verdict
Likely safe
Confidence
High
Type
Rice & grains
Size
Price tier
Budget
Read
5 min
✅ Why it works
  • Gluten-free ingredient with a simple label
  • Widely recommended as a cornstarch substitute for thickening
  • High user satisfaction and strong value signal
  • 16 oz packaging suitable for home cooking
⚠ Keep in mind
  • No formal gluten-free certification cited in the data
  • Potential cross-contact concerns raised in online communities
  • Unverified safety claim in a customer review (lead content) without corroborating testing data

Gluten safety details

Labeled gluten-free
Yes
Certifications
None documented
Ingredient risks
None identified in the product data beyond typical gluten-free status.
Cross-contact notes
No explicit cross-contact warnings; however, online discussions at times mention facility-related contamination concerns; these are user-generated and not verified by the data.

Arrowroot starch is inherently gluten-free, and the product data label it gluten-free with arrowroot as the sole ingredient. Formal GF certification is not evidenced in the provided sources. Cross-contact concerns appear in online discussions but are not supported by verified testing data in this dataset.

Cross-contact concerns mentioned in online discussions may exist in some facilities; no verified data provided here.

What to expect

Expect a neutral-flavored, smooth-textured starch that thickens sauces, gravies, soups, and stews effectively. It can serve as a cornstarch substitute in gluten-free cooking, with a 16 oz bag providing ample supply for regular use. The price is around $7.22 for the package, which some buyers view as good value for the size and performance.

👍 Best for
  • Thickening sauces, gravies, soups, and stews
  • Cornstarch substitute in gluten-free cooking
👎 Not ideal for
  • Serving as a sole substitute for all gluten-free baking flours in recipes that rely on gluten-like structure

The full guide

What is Bob's Red Mill Arrowroot Flour?

Bob's Red Mill Arrowroot Flour is a single-ingredient gluten-free starch made from arrowroot. The product is sold in a 16 oz bag and is commonly used as a thickener or as a substitute for cornstarch in gluten-free cooking. While described as gluten-free in the data, there is no formal gluten-free certification cited (such as GFCO or NSF) in the provided sources. Users often rely on its neutral flavor and reliable thickening in sauces, gravies, and stews. In baking contexts, it is noted more for thickening than for providing full gluten-free baking structure.

Gluten safety and certifications

The product label indicates gluten-free status and lists arrowroot starch as the only ingredient. However, the data do not include formal third-party certifications. Cross-contact concerns are mentioned in online discussions, but there is no verified cross-contact data provided here. A consumer review mentions lead content, but this claim is not corroborated by official testing data within the supplied sources.

Taste, texture, and culinary uses

Arrowroot starch has a neutral flavor and a smooth texture when cooked, making it a popular thickener for sauces, gravies, soups, and stews. It is often used as a cornstarch substitute in gluten-free recipes. While it's effective for thickening, the data emphasize its use for thickening rather than serving as a complete substitute for all gluten-free baking flours.

Value, pricing, and practical buying considerations

The 16 oz package is priced at about $7.22, roughly $0.45 per ounce. This places it in the budget-to-mid-range category for gluten-free starches, with a strong rating and solid perceived value in user reviews. The 16 oz size is convenient for home cooks who frequently thicken sauces or use starches in baking blends, but price comparisons with multi-pack options or competing brands are not provided in the data.

What shoppers say

💚 People liked

⚠ People flagged

Some buyers question cross-contact safety due to facility rumors and lack of third-party certification in the data.
A single review raised concern about lead content; not verified by official testing data.
Arrowroot may not fully substitute for all baking flour needs; data emphasize thickening more than baking performance.

Key takeaways

  • Great thickener with neutral flavor.
  • No formal GF certification evidenced in the provided data.
  • Cross-contact concerns are mentioned in online discussions but lack verified testing data here.
How we assess this: Gluto summarizes manufacturer labeling, listing data, and community signals — it is not a medical guarantee. Always read the current label and confirm with the manufacturer before purchase, especially for celiac disease.

Evidence gaps for this product:
  • No explicit gluten-free certification evidence from GFCO/NSF provided in the data.
  • Limited official cross-contact or facility-specific safety data; conclusions rely on consumer discussions rather than verified testing.
  • No batch-level gluten testing data or third-party lab results in the supplied sources.
Likely Safe Bob's Red Mill Arrowroot Flour, 16 oz: Gluten-Free Thickener and Cornstarch Substitute $7.22
Buy on Amazon →