Proof Bread: Downtown Phoenix's Premier Destination for Sourdough Bread, Pastries, and Fresh-Milled Flour

Proof Bread Introduce

For Arizona residents seeking truly exceptional baked goods that combine ancient traditions with local ingredients, look no further than Proof Bread. Located conveniently in the vibrant heart of Downtown Phoenix, this establishment is more than just a bakery—it's an artisan sourdough operation and a working flour mill dedicated to producing bread and pastries of unparalleled quality. Proof Bread’s philosophy is rooted in long fermentation, using only natural sourdough starter (affectionately named 'Harriet') for every single product, resulting in food that is not only delicious but also more easily digestible and nutritious.

Proof Bread has quickly earned a reputation across the Valley of the Sun for taking the sourdough process to its absolute extreme. They offer a comprehensive menu that spans from classic Country Sourdough loaves to highly sought-after, complex pastries like the Sourdough Croissant and Ham & Cheese Croissant. Their commitment to superior ingredients is exemplified by the operation of the Proof Flour Mill, where they stone-mill heritage and ancient grains, often sourced from local Arizona farmers, right in-house. This farm-to-table ethos ensures maximum freshness and supports local agriculture, a feature highly valued by the Arizona community. Whether you are a lifelong sourdough fan or, like one customer, someone who "rarely ate sourdough before" but now visits twice a month, Proof Bread offers a unique, quality-focused culinary experience right here in Phoenix.

Introduction / Overview

Proof Bread is an all-sourdough commercial bakery and flour mill based in the Phoenix Metro area, with a flagship location that serves the Downtown Phoenix community. They specialize in naturally leavened bread, pastries, and even Roman-style pizza, with every item on the menu being fermented using their traditional sourdough starter. The business prides itself on its "modern throwback" approach, utilizing time, dedication, and the best available ingredients—particularly house-milled heritage grains—to create products that honor baking history.

Their product range is extensive and deeply rooted in quality. From the hearty Sprouted Multigrain and Khorasan Sourdough loaves to their famous 81-layer laminated sourdough croissants and Danishes, the menu is a testament to the versatility of the sourdough process. The Downtown Phoenix location is a perfect spot for locals to grab a sophisticated breakfast, enjoy a sourdough pizza lunch after 10:30a, or simply stop in for a meticulously crafted coffee featuring local Press Coffee, all while enjoying a welcoming and communal atmosphere.

Location and Accessibility

Proof Bread’s Downtown Phoenix location is an excellent hub for both local residents and those working in the city center.

The specific address is:

301 W Roosevelt St Suite 122, Phoenix, AZ 85003, USA

This prime location on Roosevelt Street places it directly in the Roosevelt Row Arts District, making it a natural gathering spot. The bakery ensures an accommodating experience for all Arizona patrons with essential accessibility features:

Wheelchair accessible seating is provided for a comfortable dine-in experience.
Parking options include free street parking and paid street parking, which is common and convenient for the downtown area.

The location offers various service options, including in-store pickup, in-store shopping, takeout, and a welcoming dine-in area with amenities like Wi-Fi, perfect for a working breakfast or casual meeting.

Services Offered

Proof Bread provides a wide array of products and services centered around artisan sourdough baking:

Artisan Sourdough Bread: Whole loaves of Country Sourdough, Sprouted Multigrain, Jalapeno Cheddar Loaf, Baguettes, and French Bread.
Naturally Leavened Pastries: A full line of sourdough-based pastries including Morning Buns ($7.00), Pain Au Chocolat ($7.00), and the highly-reviewed Ham & Cheese Croissant ($12.00).
Fresh-Milled Flours: Retail sales of their own Proof Flour Mill products, including White Sonora ($18.00), Rouge De Bordeaux ($18.00), and Khorasan ($18.00) flours, often milled from locally grown grains.
Sourdough Roman Pizza: Available after 10:30a, serving lunch options like Pepperoni Pizza and Margherita Pizza ($8.50 per slice).
Sliced and Packaged Bread: Convenient options such as Sliced Country Sourdough, English Muffins (4 Pack) ($9.50), and Burger Buns (6-Pack) ($14.50).
Full Coffee & Tea Menu: Offering a range of specialty drinks featuring local Press Coffee, including Iced Latte ($5.00), Café Mocha ($6.00), and Dirty Chai ($7.00).
Dining Options: Service for both breakfast and lunch in their comfortable setting.

Features / Highlights

The unique features that make Proof Bread a must-visit destination in Arizona:

In-House Proof Flour Mill: They are one of the few bakeries in the Valley that stone-mills their own heritage and ancient grains, such as White Sonora and Rouge De Bordeaux, ensuring the freshest, most nutritious flour possible.
100% Sourdough Menu: Every single baked item, from the flakiest croissant to the heartiest loaf, is naturally leavened with their starter, providing superior flavor, texture, and digestibility.
Customer Favorite Croissant: The Ham & Cheese Croissant is consistently highlighted by customers as "the best" they have ever had, featuring rich butter and a meticulous 81-layer lamination process.
Heritage Grain Focus: Commitment to using and selling flours like locally-grown Rouge De Bordeaux and White Sonora supports a sustainable, farm-to-table food system within Arizona.
Sourdough Roman Pizza: A unique lunch offering of thin, crispy-crust pizza slices that showcases the versatility of their sourdough process, available daily after 10:30a.

Contact Information

Arizona locals can easily reach Proof Bread using the following contact information for inquiries, pre-orders, and general information:

Address: 301 W Roosevelt St Suite 122, Phoenix, AZ 85003, USA

Phone: (480) 270-8320

What is Worth Choosing

Proof Bread is worth choosing for the Arizona consumer who is done compromising on the quality of their staples. The value here is not just in the final product but in the transparent, quality-controlled process: from milling their own flour on-site to the three-day, long-fermentation technique applied to all their sourdough goods. For local users, this means consuming bread and pastries with superior nutritional profiles, deeper flavor complexity, and greater digestibility compared to commercial alternatives.

The availability of unique products like the Green Olive Boule and the full range of fresh-milled flours for home bakers sets Proof Bread apart as a true artisan leader. Customer reviews consistently back up the hype, praising not only the "delicious" and "nutritious" bread but also the "super friendly" staff. The experience is elevated by the full-service cafe environment, offering high-quality Press Coffee and a comfortable spot to enjoy a savory Sourdough Roman Pizza for lunch.

If you want to support a Downtown Phoenix business that champions local agriculture, utilizes ancient, time-honored techniques, and offers a product line that can genuinely transform your daily consumption—as it did for the customer who converted from a non-sourdough eater to a twice-monthly visitor—Proof Bread is an essential addition to your local culinary rotation. The slightly higher cost is a direct reflection of the three-day effort and locally sourced, quality ingredients that go into every single bite, making it a true investment in excellent food.

Proof Bread Food & drink

Sourdough Pastries
Curd Danish $8.50
Crafted from our light, flaky croissant dough, this Danish boasts a delightful buttery taste and texture that pairs beautifully with the sweet-tart profile of the fruit curd topping. The curd, expertly prepared by Culture Clash Yogurt, varies monthly, spotlighting a range of seasonally fresh fruits and offering a new flavor adventure with each changing season. It's a deliciously versatile pastry—perfect for a breakfast treat, a coffee companion, or an anytime snack. Ingredients: Organic Flour,
Ham & Cheese Croissant $12.00
Our flaky sourdough croissant, transformed into the ultimate savory indulgence. Each croissant is sliced open and filled with creamy béchamel, sliced Gruyère, and tender ham. It’s topped with more béchamel and grated Parmesan before being baked again until golden, melty, and irresistible. A warm, comforting bite that balances richness, salt, and crisp layers — perfect for breakfast or an elevated snack.
Morning Bun $7.00
Where cinnamon rolls meet croissants. Warm, comforting cinnamon sugar swirled between layers of flaky sourdough croissant dough, drizzled with sweet icing, and dusted with powdered sugar. Ingredients: Organic Flour, Water, Harriet (Our Starter), Butter, Sugar, Cinnamon, Eggs, and Sea Salt.
Chocolate Chip Cookie $5.00
Our chocolate chip cookies are a sweet and savory delight, striking the perfect balance of contrasting flavors. These cookies are made from a carefully selected mix of high-quality ingredients, including real butter, brown sugar, vanilla, and a touch of flaky sea salt. Each cookie boasts a soft and chewy interior, a lightly crisp exterior, and is dotted generously with semi-sweet chocolate chips. The slight saltiness from the sea salt garnish perfectly offsets the rich sweetness of the cookie, p
Pain Au Chocolat $7.00
Our take on the classic Pain au Chocolat. Using a softer, meltier, and more decadent milk chocolate, it offers a sweeter treat than our DNA Chocolatine. The pastry consists of our same sourdough house-laminated puff pastry with butter from New Zealand. Bringing it to life involves a meticulous, three-day process during which even a few degrees of temperature variation could lead to failure. There are eighty-one layers of dough and butter that give rise to a flaky, airy, and flavorful final produ
Almond Croissant $8.50
Eighty-one layers of a hand-laminated sourdough pastry filled with a house-made frangipane—a velvety almond cream that's enhanced with just a hint of vanilla—and rolled into a traditional croissant form, topped with toasted sliced almonds. Ingredients: Organic Flour, Water, Harriet (Our Starter), Butter, Sugar, Almonds, Almond Extract, Salt, Eggs
Sourdough Croissant $6.00
The Sourdough Croissant is at the heart of the Proof identity. It is quite rare to find laminated doughs that are only leavened with a sourdough starter. Commercial yeast offers a certain assurance of leavening that is difficult to achieve with sourdough given its much weaker leavening power. The execution of these pastries involves very narrow timing windows and attention to detail that demand a high level of skill and experience from our bakers. Natural leavening makes this and all our varieti
Salted Rosemary Twist $6.00
Our Salted Rosemary Twist offers a delightful blend of flavors and textures. Crafted into a beautiful braid, this sourdough-based pastry is speckled with fresh rosemary and Maldon salt. The exterior is crispy and flaky, while the inside is soft and airy, making for a pleasing contrast. The subtle hint of rosemary and the pop of saltiness from the Maldon salt create a savory treat that's great on its own, with soup, or alongside your coffee. Ingredients: Organic Whole Grain Flour, Water, Harriet,

Sourdough Bread (whole loaves)
Country Sourdough $12.00
Our classic sourdough and the base flavor for most of our vegan offerings. If it's your first time to Proof, you'll likely want to start here. We use regionally sourced organic and stone-milled whole grains to craft this artisan sourdough. A portion of the flour is organic, sourced from Central Milling, and the rest is locally grown Rouge de Bordeaux that we mill fresh in-house at our Shea location. Harriet (our starter) really shines in this extensively fermented and naturally leavened loaf, es
Sprouted Multigrain $14.50
This dough starts like our Country Sourdough with an organic whole grain flour blend of regionally sourced and stone-milled grains, plus our locally grown and freshly milled Rouge de Bordeaux flour. We incorporate a blend of seeds both spread throughout the crumb as well as toasted on the surface of the crust. This is one of our staple breads. This loaf is naturally vegan and, like all our items, leavened and fermented only with our sourdough starters. This bread makes a versatile base for sandw
Fruit & Nut Boule $8.50
Our signature long-fermented sourdough bread usually chock-full of dried cranberries and walnuts (though we like to reserve the right to change up the mixture of nuts and fruits). Pro Tip: Top with a little cream cheese or labneh and local honey for an easy breakfast, elevate your next grilled cheese with a bit of brie and jam, or slice thin and bake lightly for a great addition to your next charcuterie board. Ingredients: Ingredients: Organic Whole Grain Flour, Locally Grown & Freshly Milled Ro
Jalapeno Cheddar Loaf $12.00
Melty cheddar cheese and jalapeños are a classic combination that will have you craving this bread for all your sandwiches. A classic soft textured sourdough made the old school way through and through, though this time with added richness and a kick. The bread is softened with milk, butter, and a touch of brown sugar—as opposed to additives that you can't pronounce. Pro Tip: Level up your classic grilled cheese with this spicy alternative. Ingredients: Organic Whole Grain Flour, Water, Butte
Khorasan Sourdough $14.50
Part of our ancient grains series, and the first bread on our menu to be made with flour milled in-house at our Shea location. Khorasan wheat contains more protein, amino acids, vitamins, and minerals than most modern wheat. This loaf is hearty, delicious, and of course it's sourdough. Ingredients: Freshly Milled Khorasan, Flour, Water, Salt, Harriet, Less Than 1% Honey
Baguette $8.50
An unmistakable icon of French gastronomy and culture. Compared to the classic sourdough, baguettes possess a far more robust, crunchy crust and an airy, fluffy, open crumb from the gentle handling during the meticulous shaping and folding process. Pro Tip: The crunchy exterior and smaller crumb to crust ratio makes this a sturdy bread for your next bruschetta, sandwich au jus, or as a strong companion for soups or stews! Ingredients: Organic Whole Grain Flour, Water, Harriet (Our Sourdough Star
Green Olive Boule $8.50
Our signature local sourdough bread, now matched with olives from Queen Creek Olive Mill. This loaf is the perfect marriage of the natural flavor of our sourdough and the earthy, savory, umami-rich green olive goodness. Pro Tip: Serve this loaf with your next pasta dish or charcuterie board by pairing it with gourmet olive oil and herbs for dipping. Ingredients: Organic Whole Grain Flour, Locally Grown & Freshly Milled Rouge de Bordeaux Flour, Water, Harriet, Rye Starter, Salt, Queen Creek Sevil
French Bread $11.00
French bread as we know it in the US is a bit of a misnomer; a true French baguette is more akin to our traditional baguette. In this case, we are introducing our own twist and take on the French-style loaves you might come across in supermarkets, or what you might encounter in New Orleans on a po’ boy sandwich. We shape it like an oversized baguette, and it has an eggshell-thin, crispy crust on the exterior and a fluffy, pillowy crumb in the interior. It has a mild, mostly neutral flavor with

Flour and Grain
White Sonora - Proof Flour Mill $18.00
Rye - Proof Flour Mill $18.00
Buckwheat - Proof Flour Mill $24.00
Central Milling Retail Flour $18.00
Khorasan - Proof Flour Mill $18.00
Rouge De Bordeaux - Proof Flour Mill $18.00

Sourdough Roman Pizza (available after 10:30a)
Pepperoni Pizza $8.50
Genovese Pizza $8.50
Margherita Pizza $8.50

Sourdough Bread (sliced and/or packaged)
Burger Bun (6-Pack) $14.50
Not your typical Burger Buns these soft, pillowy and fluffy creations are leavened only with our sourdough starter. They are vegan and pack the perfect texture to compliment your burgers without stealing the show. We consider these buns a major breakthrough because until recently when we started using a sweet sourdough starter, we couldn't achieve such a superior texture. Ingredients: Organic Artisan Bakers Craft Flour, Proof Flour Mill Locally Grown Rouge de Bordeaux Flour, Sweet Sourdough Sta
Sliced Jalapeno Cheddar Loaf $12.00
English Muffin (4 Pack) $9.50
A four-pack of perfect sourdough pillows to truly elevate your breakfast sandwiches or your next eggs benedict. Stock these up in your pantry, as these have a robust shelf life of about a week out on the counter, while also freezing incredibly well. Ingredients: Organic Whole Grain Flour, Water, Butter, Sugar, Eggs, and Sea Salt.
Sliced Country Sourdough $12.00
Our classic sourdough and the base flavor for most of our vegan offerings. If it's your first time to Proof, you'll likely want to start here. We use regionally sourced organic and stone-milled whole grains to craft this artisan sourdough. A portion of the flour is organic, sourced from Central Milling, and the rest is locally grown Rouge de Bordeaux that we mill fresh in-house at our Shea location. Harriet (our starter) really shines in this extensively fermented and naturally leavened loaf, es
Sliced Fruit & Nut Boule $8.50
The sliced version of our signature long-fermented sourdough bread usually chock-full of dried cranberries and walnuts (though we like to reserve the right to change up the mixture of nuts and fruits). Pro Tip: Top with a little cream cheese or labneh and local honey for an easy breakfast, elevate your next grilled cheese with a bit of brie and jam, or slice thin and bake lightly for a great addition to your next charcuterie board. Ingredients: Ingredients: Organic Whole Grain Flour, Locally Gro
Sliced Sprouted Multigrain $14.50
This dough starts like our Country Sourdough with an organic whole grain flour blend of regionally sourced and stone-milled grains, plus our locally grown and freshly milled Rouge de Bordeaux flour. We incorporate a blend of seeds both spread throughout the crumb as well as toasted on the surface of the crust. This is one of our staple breads. This loaf is naturally vegan and, like all our items, leavened and fermented only with our sourdough starters. This bread makes a versatile base for sandw
Sliced Khorasan Sourdough $14.50
Sandwich Loaf $12.00
Packed with long-fermented stone-milled whole grains and sliced for ease, this is a mom's go-to bread for anything from simple breakfasts to school lunches. We are aiming for a loaf that still has all the qualities of our sourdough bread, while also boasting a tighter crumb (no sticky fingers here!), softer crust, and consistent slice sizes throughout the loaf. Pro Tip: Nothing beats a PB&J on our sliced Sandwich loaf; these classic flavors mesh beautifully with the complex flavors of the sourdo
Sliced Green Olive Boule $8.50
The sliced version of our signature local sourdough bread, now matched with olives from Queen Creek Olive Mill. This loaf is the perfect marriage of the natural flavor of our sourdough and the earthy, savory, umami-rich green olive goodness. Pro Tip: Serve this loaf with your next pasta dish or charcuterie board by pairing it with gourmet olive oil and herbs for dipping. Ingredients: Organic Whole Grain Flour, Locally Grown & Freshly Milled Rouge de Bordeaux Flour, Water, Harriet, Rye Starter, S

Coffee & Tea (featuring Press Coffee)
Café Mocha $6.00
Iced Tea $3.50
Americano $5.00
Espresso + Water
Cortado $5.00
Café Latte $5.00
Chai Latte $6.00
Brewed Coffee $3.50
Cappuccino $5.00
Espresso $3.50
Dirty Chai $7.00

Proof Bread Details

Service options
In-store pickup
In-store shopping
Takeout
Dine-in

Accessibility
Wheelchair accessible seating

Offerings
Coffee

Dining options
Breakfast

Amenities
Wi-Fi
Wi-Fi
Restroom

Parking
Free street parking
Paid street parking

Proof Bread Photos

Proof Bread Location

Proof Bread

Arizona Maricopa County Phoenix Central City West Roosevelt Street

301 W Roosevelt St Suite 122, Phoenix, AZ 85003, USA

Proof Bread Reviews

An average rating of ★4.9 from 39 user reviews.

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★ 5★ 4★ 3★ 2★ 1

The bread and pastries are delicious, and the staff are super friendly. The heated ham & cheese croissant is the best I’ve ever had—it’s a bit pricey but definitely worth trying. The iced latte and mocha are also great.I rarely ate sourdough before, but now I find myself visiting this place twice a month!
August 02 · Yi An Tsai
Nutritious bread and the most delicious pastries. Love the specialty items Proof introduces as well, they are always worth trying!
May 26 · David Flores
Nothing says “celebrating my diet progress” quite like… undoing it entirely at Proof Bread Co’s new downtown spot. I told myself I was just swinging by for one loaf of bread. You know, casual, responsible, just a little treat.Cut to: me walking out with three loaves, four chocolate chip cookies, and a pepperoni pizza. Honestly? Zero regrets.The place itself is adorable and super convenient like the kind of spot that makes you want to “accidentally” forget your lunch just so you have an excuse to stop in. The smells hit you like a carb-loaded hug the second you walk in, and the girl at the counter was so nice she could’ve sold me a sourdough starter and told me to name it.10/10 would sacrifice abs for bread again.
August 16 · Christopher Owens
Delicious pastries, strong coffee, dog friendly, indoor and outdoor seating. So thankful Proof has a downtown location!!
May 25 · Harlene Gabiana
Proof's spot on Roosevelt is utterly fabulous. Stop in for one of their fresh pastries, get a tasty coffee to go with it, and grab a delicious loaf of bread for dinner that night. There is cute indoor seating space and a wide open walk-up window with patio.Plus the people there are always so friendly and willing to answer questions about their bread or just help start your day on a lighter note.They're an amazing addition to this part of Roosevelt and I highly recommend a stop.
May 23 · Jeff Moriarty