Boca Dough ships our live 100 year old San Francisco heirloom sourdough starter to San Mateo, California with free USPS shipping. Typical transit from our Boca Raton, Florida bakery is 3–5 business days.
San Mateo sits at the heart of the Peninsula and serves as a historic hub for both commerce and recreation. Locals often visit the Japanese Garden in Central Park, which was designed by Nagao Sakurai and remains one of the most authentic traditional gardens in the region. The city is also home to the Bay Meadows area, where a famous horse racing track once stood for seven decades before transforming into a modern mixed-use community. If you live in San Mateo and want to bake your own real sourdough at home, our live starter is the fastest way to begin.
Situated on the San Francisco Peninsula, San Mateo transitions from the bayfront marshes of Coyote Point to the oak-dotted hills of the Highlands. The city’s vibrant downtown centered around 3rd Avenue and B Street acts as a culinary hub, reflecting a diverse community of tech professionals and long-time residents. Historic neighborhoods like Baywood feature tree-lined streets that foster a distinct, community-focused suburban vibe just south of San Francisco.
San Mateo's baking landscape is anchored by acclaimed modern establishments like Backhaus on East 3rd Avenue, which popularized artisan sourdough and laminated pastries in the downtown core. Historically, the area's rich agricultural past and influx of European and Asian immigrants in the mid-20th century established a legacy of diverse, heritage baking techniques. This evolution from traditional family-run storefronts to modern naturally leavened micro-bakeries defines the city's current bread culture.
San Mateo’s coastal Mediterranean climate, characterized by cool marine breezes and moderate humidity from the San Francisco Bay, provides an ideal environment for wild yeast cultivation. To compensate for cooler evening temperatures when the marine layer rolls in, local bakers should utilize a warm water baseline (around 80°F) to ensure consistent bulk fermentation times. Because the city sits virtually at sea level, doughs do not suffer from rapid altitude-induced rising, allowing for long, slow cold-proofing that maximizes lactic acid development.
Every starter kit ships from Boca Raton, Florida the next business day after you order. We feed the starter to peak activity, seal it in a small padded USPS envelope, and hand it off. From there it usually reaches San Mateo in 3–5 business days.
San Mateo home bakers love sourdough for the same reason California bakers do - real bread, simple ingredients, and a starter that lives forever once it's in your kitchen. One feeding when it lands and you're baking your first loaf within a day.
Your kit includes 50g of live starter, feeding instructions, and our secret recipe - everything a San Mateo kitchen needs to bake a real, open-crumb sourdough loaf.
New to baking sourdough at home? Read our guide to keeping sourdough fresh or try our sourdough French toast recipe.
Rated 5.0 by home bakers who've activated our 100 year old San Francisco heirloom culture.
"Their sourdough bread is the best, moist and richly flavorful, not airy, perfect density. Their cookies are superb, wholesome flavor from excellent ingredients, naturally sweet, not sugary yet deeply satisfying. The best of baking. Excellent easy communication regarding pick up, and punctual."
- Patricia P.
"Absolutely one of the best sourdough breads I have ever tasted. So easy to order too! You will not be disappointed!!"
- Betsy Nieporte
"Tried every sourdough in town, and nothing compares to this delicious bread AND cookies. The bread was crunchy on the outside and warm and soft on the inside with a delicious taste. Cookies were soft and warm. I will be a returning customer every week. The convenience of ordering fresh bread and cookies for next day is a luxury!"
- Albina Findling
"The best bread in Boca! So happy I found it, thank you so much again!"
- Katerina Ko
"Friendly people and delicious products! I highly recommend them!"
- Arielle Pimienta
"Picked up a couple of loaves today and chocolate chip cookies and everything was really good. I won't be buying bread again at Publix when Boca Dough is so close. The best part is a hard working 10 year old with great work ethic starting a business."
- Jeffrey Govberg
"I was in Boca on an overnight business trip and wanted to gift some cookies. As soon as I read 'sourdough cookies' there was no need to look further. They accommodated my order on short notice - freshly baked and smelled heavenly. I gifted the cookies as planned and brought a few back to share with my office. Absolutely amazing and left us all wanting more!"
- Nikki Mitchell
"Absolute best sourdough I've ever had! So fluffy and delicious! Never had sourdough cookies and am now obsessed - so scrumptious! Service was 10/10. Love the transparency on all the ingredients and no seed oils. Will continue to support!"
- Anna Gonedes
"Boca Dough is fantastic! The flavor, freshness, texture, and overall quality are on another level. After trying Boca Dough's loaves and cookies, we're definitely hooked. The bread tastes homemade, special, and truly delicious."
- Jim L.
"Tried a piece of every loaf and they're all delicious! 🍞❤️ Cinnamon, plain, cranberry & everything bagel. Fresh, flavorful and baked to perfection!!!! Highly recommend!"
- Sandra P. Garcia
"We ordered 4 loaves and a bunch of cookies. The cookies were absolutely amazing - they were gone almost immediately! We sampled all of the loaves and were amazed by how delicious everything was. This is truly the best bread we've ever had. Fresh, flavorful, and so delicious."
- Jim L.
"I recently found Bocadough on instagram. The chef looked so adorable I had to try it. All of the breads are absolutely amazing as well as the cookies. The whole process was so easy and my whole family loved everything!! Highly recommend!!!!!"
- Melinda Friedman
"Cookies are chewy and decadent, and as healthy as one can get with the ingredients for the guilty pleasure. The bread is fresh, outstanding and addictive. No additives, just the basic ingredients. You will never find anything like this bread in a supermarket. Best part - super easy to buy and pick up!"
- Andrea Rodriguez
"Without exaggeration this was the best sourdough bread I ever ate. The fact that it was baked by 10 yr old Meilani out of her home with her family's support makes this an amazing story, but make no mistake, the bread is the star of the show. I highly recommend trying the bread. You will be hooked immediately."
- Bart Friedman
"Delicious! Best sourdough in all of Boca!"
- Marisol Schneider
"We followed the signs for fresh sourdough. Little did we know, it was baked by an 11-year-old with the help of her dad. WOW… this bread is the real deal. Perfect crust, soft inside, and made with so much love!"
- Sara B.
"We've been ordering nonstop since discovering Boca Dough. Every single loaf has been cooked perfectly! Her cookies are so yummy - baked fresh with guilt-free ingredients. Highly, highly recommend!"
- Paulina F.
"The bread is just beautiful: crisp on the outside, soft and airy on the inside, with that rich, authentic sourdough flavor you usually only find in the most dedicated artisan bakeries!"
- Ekaterina Y.
"The sourdough bread is amazing. The cookies are to die for. I particularly like the dark choc chip!"
- Sue D.
"The bread is incredibly moist and bursting with flavor, offering a delightful chewiness that sets it apart from anything else I've tasted. Highly recommended!"
- Monique H.
"I picked up a loaf of sourdough while it was warm. My patience was rewarded with a crunchy crust and firm savory inside. I toasted it, and smeared it with butter~ MMMM good!"
- Marjorie G.
$12. Free USPS shipping in the USA. Flat $5 worldwide. Ships in 1–2 business days.
Order your Starter Kit