For a bread lover, Proof Bread is sourdough heaven. The current rendition of the bakery launched in 2017 when married couple Jon Przybyl and Amanda Abou-Eid bought the popular artisan brand from Jared Allen and shifted operations to their own garage in Mesa. Devotees so love their crusty, chewy sourdough creations that they flocked to contribute thousands to an online fundraising campaign that helped Proof move into a Mesa storefront in 2021. In July, the company opened a second location, this one in Phoenix's so-called Sheaborhood. Their sandwich loaf is without the puff and holes you find in typical sourdough loaves, with the butter and brown sugar used to help it rise giving it that special Proof taste. Don't fret — there are traditional sourdough loaves, too, sitting on shelves alongside a multigrain version, baguettes, muffins and buns. Nearly everything in the place has a sourdough base, even the pizza and sweet treats. Even with the storefronts, Proof stays true to its roots and still offers its baked goods at several farmers markets around the Valley.