The Prepared Pantry

San Francisco Style Sourdough Bread Machine Mix

An authentic bread with a crackly, chewy crust, a split crust, and sourdough flavor

SKU: M64-1

Can I use this mix in my 1 pound capacity or 1.5 pound capacity bread machine?

We have designed our mixes specifically for 2 lb. capacity machines. However, you may still find success with 1.5 lb. capacity machines. You may expect to see the top of the loaf touch the lid of the machine towards the end of the baking cycle. This may lead to imperfect baking in that one spot on the loaf. The rest of the loaf should be fine. For 1 lb. bread machines, we recommend only running the bread on the dough cycle and then transfer the dough to a pan for baking in a conventional oven. See packaging for more info.

Why do the directions ask me to use a thermometer?

Yeast is very sensitive to heat and other environmental factors. We have tested and designed our mixes to find the sweet spot for yeast activity to get the best rise. Even just a few degrees off on water temperature can make a big impact on the quality of your bread. Measuring the temperature of your water accurately is the best way to ensure consistently successful bread baking.

I followed the directions exactly and I see had a problem with my bread? What can I do?

Sometimes bread issues happen. We are happy to help. Send us a picture of your bread and a picture of the back packaging of your bread mix to our customer support email at Include as much detail as possible about your baking process and bread machine model so we can troubleshoot the cause of the issue.

Should I adjust my mix for high altitudes?

We don't recommend making any changes to the mix for high altitudes. We have tested our mixes in a variety of locations and have fine tuned each mix to be the best product possible.

I don't have a bread machine or a stand-type mixer. Can I still make this bread in my oven?



  • What does San Francisco sourdough taste like? It has a slightly tangy flavor, chewy texture, and slightly sour aroma.
  • What makes the flavor unique? San Francisco has a unique strain of wild yeast that flavors its breads. Other areas, like Alaska and New England, have their own strains of wild yeast. We have mimicked that San Francisco flavor since we're in Idaho. The sour taste is close.
  • What's this bread like? Well, it's a creamy-white loaf. The crust, except where it's in contact with the pan, is an unusual creamy-white color.
  • Does it have a split crust like some other sourdoughs? Yes, but every loaf is a little different and unique. I don't know why the tops vary but it's fun, a little different loaf every time.
  • What's the crust like? It's thick, crunchy-chewy, like a genuinely artisan bread. The interior is soft and white and moist.
  • Why is the water temperature important? The ideal temperature for yeast is 79 degrees.
  • What if I don't have a bread machine? It's easy to make in your oven.
  • It says "no preservatives." How long will it last? Not for weeks like the store loaves loaded with preservatives.  We recommend not more than five days. If you won't use it all, slice it and put it in the freezer.  Thaw it in the toaster.


This San Francisco sourdough bread is as good as it gets. You'll bake like an artisan baker. 

You'll make San Francisco sourdough bread in your own kitchen, one with the tangy, distinctive flavor of San Francisco Bay. It will be chewier and crustier than other breads made in your bread machine, an authentic artisan sourdough bread with its split white top. Your family will be delighted.

chicken and avocado on sourdough

Chicken and Avocado Sandwich on Sourdough Bread

This is a delightful sandwich on a delightful bread. Spread a little mayo on the bottom slice of bread.  This is a mild sandwich. If you want a little more tang, you can use a salad dressing or another spread.  The avocado creates a smooth topping on the top of the sandwich, so a spread on the top slice is not necessary.  

Against the bottom slice of bread is a layer of provolone cheese, not a thick slice.  Be sure to sprinkle the sandwich with salt and pepper. It's amazing how much seasoning improves a sandwich.

You can make this a grilled sandwich if you want.  Put the avocado on after grilling.

This will be a delightful sandwich. Chowder goes great with this bread.

clam chowder

New England Clam Chowder with Bacon Recipe

If you like chowder, you should try this recipe with your bread. It is easy to make, even for someone who is new to chowder.

This recipe uses canned clams. You can get larger cans of clams at Sam’s Club. Because this recipe also has bacon, it calls for fewer clams.

This is a very meaty recipe. If you want a less meaty chowder, thin it with milk as you finish cooking it.


  • 8 ounces thick-cut bacon, diced
  • 24 ounces of clams, canned
  • ¼ cup butter
  • ¼ cup flour
  • 2 cups heavy cream
  • 1 small onion, diced
  • 3 stalks celery, diced
  • 1 ½ pounds potatoes, diced
  • 2 tablespoons Gresham & Myers Cajun Seasoning or another spice blend



  • In a large pan, combine potatoes, clam juice, and enough water to cover potatoes. Bring to a boil and cook until potatoes are tender. Do not drain.
  • Cook the bacon in a frying pan over medium heat until crisp. Remove the bacon from the pan and drain all but one tablespoon of the drippings.
  • Add the onion and celery to the frying pan and cook until softened. Add the butter. When the butter is melted, stir in the flour and cook until slightly browned.
  • Stir the vegetable mixture into the potatoes in the clam water. Add the clams and cooked bacon and cook until thickened. When the chowder is thickened, heat the cream so it doesn’t cool the soup, and add it with the seafood seasoning. Heat until the clams are warmed through.


 Troubleshooting Your Clam Chowder
  1. If your chowder is too thick and pasty tasting, either you have too much thickener or the soup was cooked too long. Thin your chowder with warm milk.
  2. If the flavor is disappointing, either not enough of the main ingredients are used or too much liquid is used.
  3. If the soup is bland, too much cream may have been added, masking the clams' flavor.


What others say about this bread:

"Loved this loaf. This a lovely bread, tender crumb with a moderate sourdough flavor. I made the bread machine version and used the basic, light crust setting on the machine. The loaf was perfect and delicious. I will be purchasing more. Great bread!"  Margaret Minnick 

"This bread is for YOU! Yum Prepared Pantry knows how to make good bread so don't miss out. I have been buying their mixes for a few years and I've been 100% satisfied. Sourdough is my FAVORITE!"  Don W.

"Awesome!! This is just perfect!! I couldn't wait to make it and it turned out better than I expected. It tastes soooooooo good!!!!! :) Will definitely buy more."  Trina Cox

We sell thousands of this bread. Though we offer a guarantee, we never have a claim. It's that good.

Be an artisan baker. Make this for your family. They'll love it and feel like world travelers.

 Be an artisan baker. It's easy to do with this mix.

Notes To Bakers:

For a crusty bread: This sourdough bread naturally forms a more chewy crust than other mixes and a "medium" crust setting will be adequate in most bread machines. To maintain a chewy crust, store your bread in a paper bag, not plastic. (In plastic, the bread sweats and softens the outer crust.)

If you bake it in your oven: In your bread machine, this mix forms a very moist dough ball--too sticky to handle. You'll want to reduce the water by a couple of tablespoons. You can make a wonderful sourdough bread in your oven but it takes a little patience. With less water, this is a slow riser. Allow at least a couple of hours for it to rise on your counter.


Customer Reviews

Based on 132 reviews
katja W.
Soo yummy

Soo yummy and tasty!! Amazing texture!! Very delicious 🤍

Jennifer Castaneda
San Francisco Sourdough Superb

I ordered bread mix for my bread maker for the first time and me and my family loved it. The San Francisco sourdough was so incredibly good. I am glad I bought 4. I definitely would recommend this product

Kelly Mevoli
Fantasic bread mixes

wonderful mixes..Breads came out perfect..will buy much m ore from here

Love it!!

Prepared Pantry has the best bread mixes. The sourdough is EXCEPTIONAL.


First time ordering but placing an order at this moment.