Bread Flour Comparison: King Arthur, Bob's Red Mill, and Beyond

If you've ever stood in the flour aisle confused by the choices, this is for you. Here's a practical comparison of the most common bread flour brands, what they're like, and when to use each.

Why flour brand matters

Different flours behave differently:

• Different protein content
• Different absorption
• Different gluten quality
• Different flavor

A recipe written for one flour may need adjustment for another. Knowing what you're working with helps.

King Arthur Bread Flour

Protein: 12.7% Type: Hard red wheat blend, unbleached, unbromated Cost: $$ ($5–7 for 5 lb)

Strengths

• Highly consistent year-round
• Good gluten development
• Pleasant flavor
• Widely available
• The reference flour for many published recipes

Weaknesses

• Slightly more expensive than some alternatives
• Sometimes hard to find in bulk
• Same characteristics every time (no terroir)

When to use

• Default for most sourdough
• Recipes that specifically call for King Arthur
• When you want maximum reliability

King Arthur Sir Lancelot

Protein: 14.2% Type: High-gluten flour Cost: $$$ ($8–10 for 3 lb)

Strengths

• Very high protein
• Outstanding for bagels and pretzels
• Maximum chew
• Holds high hydration well

Weaknesses

• Expensive
• Overkill for normal loaves
• Online or specialty store only

When to use

• Bagels (this is the right flour)
• Pretzels
• Pizza dough where you want extreme chew
• Specific European-style breads

Bob's Red Mill Artisan Bread Flour

Protein: 12.5% Type: Hard red wheat, unbleached Cost: $$ ($5–7 for 5 lb)

Strengths

• Whole grain wheat is recognizable
• Slightly more flavor than King Arthur
• Wide availability
• Reliable

Weaknesses

• Slight inconsistency (more variation than King Arthur)
• Same protein content as King Arthur

When to use

• Country loaves where you want more wheat flavor
• Substitute for King Arthur in most recipes
• When King Arthur isn't available

Pillsbury Bread Flour

Protein: 12.0% Type: Hard wheat, bleached, sometimes bromated Cost: $ ($3–5 for 5 lb)

Strengths

• Cheap
• Available in most grocery stores
• Reliable for everyday baking

Weaknesses

• Less protein than premium brands
• Bleached (some bakers prefer unbleached)
• Less complex flavor

When to use

• Budget bakes
• When other brands aren't available
• Beginners just starting out

Gold Medal Better for Bread

Protein: 12.0% Type: Hard wheat, bleached Cost: $ ($3–5 for 5 lb)

Same characteristics as Pillsbury. Reliable budget option, slightly less protein than premium brands.

Caputo "00" Pizza Flour

Protein: 12.5% Type: 00 grade Italian flour Cost: $$$ ($8–10 for 1 kg)

Strengths

• Fine grind perfect for pizza
• Develops great gluten quickly
• Classic Neapolitan-style results
• Beautiful flavor

Weaknesses

• Expensive
• Specialty (not everyday flour)
• Limited use beyond pizza and pastries

When to use

• Neapolitan-style pizza specifically
• High-quality pasta
• Italian-style country loaves

Lehi Mills Turkey Red Flour

Protein: 11.5% Type: Heritage hard red wheat, stone-milled Cost: $$$ ($10+ for 5 lb)

Strengths

• Distinct heritage wheat flavor
• Single-origin (terroir)
• Stone-milled
• Connects you to a specific farm

Weaknesses

• Lower protein than commercial bread flour
• Expensive
• Limited availability

When to use

• Country loaves where flavor is the goal
• When you want to support heritage grain growers
• Special bakes

Anson Mills Carolina Gold Wheat

Protein: 11–12% Type: Heritage soft wheat, stone-milled Cost: $$$$ ($15+ for 2 lb)

Strengths

• Outstanding flavor
• Heritage variety
• Stone-milled
• Beautiful color

Weaknesses

• Very expensive
• Limited supply
• Lower protein (need to blend with bread flour for structure)

When to use

• Special occasion baking
• Pastries and quick breads (where lower protein helps)
• When flavor matters most

Whole Foods 365 Bread Flour

Protein: 12.0% Type: Hard wheat, unbleached Cost: $$ ($4–6 for 5 lb)

Strengths

• Available at Whole Foods nationwide
• Consistent
• Slightly cheaper than King Arthur

Weaknesses

• Limited to Whole Foods stores
• Slightly less protein than King Arthur

Trader Joe's Bread Flour

Protein: 12.0% Type: Hard wheat, unbleached Cost: $ ($3–5 for 5 lb)

Strengths

• Cheap
• Available at TJ's
• Reliable for everyday bakes

Weaknesses

• Limited to TJ's
• Less protein than premium brands

Costco Kirkland Bread Flour

Protein: ~12.0% Type: Hard wheat, unbleached Cost: $ (50 lb bag for $20)

Strengths

• Best price per pound
• Reliable
• Bulk size for serious bakers

Weaknesses

• Bulk size requires storage
• Same protein as cheaper grocery options

When to use

• Heavy bakers (multiple loaves per week)
• Restaurant-style operations
• Long-term storage with proper containers

Local mill direct

Protein: Varies (often 11–13%) Type: Whatever your local mill grows Cost: $$–$$$$

Strengths

• Freshest possible
• Supports local farming
• Distinct flavor
• Builds community connection

Weaknesses

• Hard to find in many areas
• Inconsistent (varies by harvest)
• Often limited to in-person purchase

When to use

• When available
• When you can adjust recipes for the specific flour
• When you want the most flavor

A quick comparison table

Which to start with

For someone new to sourdough:

1. King Arthur Bread Flour — reliable starting point
2. After 10 bakes, try Bob's Red Mill for comparison
3. Decide which you prefer

Don't experiment with multiple brands at once — you won't know what's causing what.

Adjusting for protein content

If a recipe was developed for 12.7% protein flour and you're using 12.0%:

• Slightly less hydration (5% less water)
• Or accept slightly tighter crumb
• Or add 1% vital wheat gluten

Small differences matter for high-hydration bakes; less for sandwich loaves.

A note on freshness

All flours are best fresh:

• Use within 6–12 months of production date
• Freeze unused portions if storing long-term
• Whole grain flours go stale faster

Brand matters less than freshness. Old King Arthur is worse than fresh Pillsbury.

A note on bleached vs. unbleached

For sourdough, prefer unbleached:

• Bleached has more uniform color
• Unbleached has more flavor
• Unbleached has slightly stronger gluten
• Bleached is fine for cakes; unbleached is better for bread

Most bread flours are unbleached by default. Check the label.

When to try heritage flours

Heritage wheats (Turkey Red, Sonora, Red Fife, etc.) are worth trying when:

• You've baked 25+ loaves with commercial flour
• You're chasing flavor depth
• You can find a good source
• You can accept slightly less consistent results

These flours are an upgrade in flavor and connection, but require accepting variability.

My personal flour rotation

My usual flour mix:

• 80% King Arthur Bread Flour (workhorse)
• 15% Bob's Red Mill Whole Wheat (flavor)
• 5% rye flour (boost fermentation)

For pizza: Caputo 00.

For bagels: King Arthur Sir Lancelot.

For special bakes: local heritage wheat from a small mill.

A practical recommendation

For most home bakers:

• Buy King Arthur Bread Flour for everyday use
• Buy Caputo 00 if you make pizza weekly
• Buy a 5 lb bag of whole wheat for blending
• Buy a 2 lb bag of rye for flavor

Total flour investment: about $30 for months of baking. The right flour matters more than the right equipment.

Why this matters

The flour you choose affects every bake. A small upgrade from cheap grocery store flour to King Arthur Bread Flour produces noticeably better bread.

Don't skimp on flour to save $2 per bag. The price difference per loaf is pennies; the quality difference is meaningful.

Spend on flour. Save on equipment. That's the order of priority for home sourdough.