Whole Grain Rice Flour – Properties, Usage, Alternatives

Practical guide to whole grain rice flour (reis-vollkorn): what it does in sourdough, how to use it, hydration and mixing tips, and good substitutes.

At a Glance

Whole grain rice flour (brown rice flour) is the milled whole kernel of rice including bran. It adds a nutty flavor, increased fiber, and a gritty texture compared with refined rice flour. In sourdough baking it's most often used in small percentages to add flavor, nutrition and crumb moisture.

💡 Unlike wheat or rye type numbers, rice flours are described by 'whole grain' vs 'white/refined'. Whole grain rice flour retains the bran and germ, giving higher oil and fiber content which affects shelf life and hydration [1].

Brown rice flour Wholemeal rice flour Reisvollkorn (DE)

Properties

Particle size Fine to medium (varies by mill)
Color Light tan to brown
Flavor Mild, nutty
Protein content 6-8% (non-gluten)
Starch behavior High starch, contributes to crumb tenderness
Water absorption Moderate to high (varies 60-85% depending on fineness)

⚠️ Rice flour contains no gluten; it behaves like other non-wheat flours in that it dilutes the gluten network and can increase dough stickiness or crumble if used in large amounts. Use sourdough techniques and binders when increasing ratios [1][2].

Best Uses

✓ Ideal for:

  • • Gluten-free or partially gluten-reduced loaves
  • • Bread mixes to add nuttiness and moisture
  • • Flatbreads and quickbreads
  • • Sourdough with high hydration and gluten-replacement strategies

✗ Not ideal for:

Mixing recommendations:

Up to 10% whole grain rice + wheat
→ Adds flavor and moisture with minimal weakening of dough
10–25% whole grain rice in mixed loaves
→ Notable nuttiness and softer crumb; add extra hydration and consider autolyse
100% rice (gluten-free)
→ Requires binders (xanthan/psyllium) or gelled starch and a gluten-free starter approach

Behavior in Dough

Consistency

Rice reduces dough elasticity and can feel pasty or crumbly when used in higher percentages; with water it becomes cohesive but not stretchy.

Development

No gluten development — no windowpane. Structure must come from wheat gluten or hydrocolloid binders.

Fermentation

Fermentation activity is mainly from the starter; rice provides fermentable sugars but fewer amino acids than wheat, so prefer a mature starter.

Sourdough required!

Using rice flour in sourdough relies on the microbial activity to produce acid and flavor but rice itself lacks enzymes and proteins that support a strong gluten network. When combined with wheat, the sourdough acids and enzymes improve crumb and shelf life [1][2].

Minimum: When used in mixed wheat-rice loaves, keep rice under 25% for predictable rise without additional binders.

Hydration

Recommended: Start by increasing hydration by ~3–8% when adding 10–25% whole rice flour; adjust based on particle size.

Because whole rice flour contains bran and oils, it may absorb water more than refined rice flour; allow a 20–30 minute rest (autolyse) for full absorption [1].

Alternatives & Substitutes

Direct alternatives:

White (refined) rice flour

Less bran, lighter color and shelf-stable longer; slightly lower water absorption

Sorghum flour

Similar neutral flavor in gluten-free baking; slightly higher protein

Millet flour

Mildly sweet and works well in blends for gluten-free breads

International equivalents:

Country Flour Brands
USA Brown rice flour (Bob's Red Mill, King Arthur carry variants) Bob's Red Mill, King Arthur
UK Wholemeal rice flour Doves Farm
Germany Reisvollkorn (from local mills)

Where to Buy

🛒 Supermarket

  • Health-food aisles at major supermarkets
  • Large grocery stores with organic sections

🌿 Organic

  • Natural Grocers
  • Local co-ops

💡 Buy recent batches and store cool — whole grain rice flour's bran oils reduce shelf life; small quantities from a reputable mill are best [1][2].

Storage

Shelf life

3–6 months at room temperature (sealed), 6–12 months refrigerated or frozen

Storage location

Airtight container in cool, dark place; refrigerate or freeze for long-term storage.

⚠️ Because whole rice flour contains oil-rich bran, it can turn rancid faster than refined white rice flour — smell and taste check before use.

Recipes with this flour

Recipes using whole grain rice flour or blends:

Country Mixed Loaf (10% rice) 10% Gluten-Reduced Sandwich Bread Up to 25% rice Gluten-Free Rice & Buckwheat Loaf 100% (requires binders)

Sources

  1. [1]
    The Perfect Loaf – The Perfect Loaf – Link
  2. [2]
    Plötzblog – Plötzblog – Link