Learn how to make a sourdough starter recipe from scratch with just flour and water. This versatile ingredient can be used to make breads, cakes, cookies, and so much more.

If you hang around the traditional foods community, chances are you have heard of making homemade sourdough starter from scratch.

I have had my homemade starter for over six years now. It is vital in my traditional food kitchen.

What Is A Sourdough Starter?

A sourdough starter is a live active culture made of fermented flour and water that is full of beneficial bacteria and yeasts.

It is used as a way to ferment recipes and naturally rise bread.

Why You Will Love Sourdough:

If you are unfamiliar, let me fill you in on all the reasons why crazy folks, like me, go through the effort of handcrafting, and maintaining, a beneficial colony of yeasts and bacteria in their kitchens.

Before yeast was isolated and sold in little packets, sourdough starter was a valuable commodity in homes and families, passed down for generations.

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Health Benefits

Have you ever heard of phytic acid? Basically, it’s an antinutrient found in grains, beans, and nuts that interferes with the absorption of certain nutrients. They are present on grains to keep them from spoiling.

There is a reason they are there, but there is also good evidence that our bodies weren’t meant to handle them. Proper preparation of grains eliminates most, if not all, of the phytic acid in offending foods.

This is the very reason traditional cultures soaked and fermented their grains, seeds, and beans. These days, we’ve lost that art. And what have we found? People can’t handle grains anymore.

Instead of using instant yeast packets, people in traditional cultures leavened their bread with a fermented starter that captured all the yeasts in the environment.

AKA Sourdough starter

How on earth do we capture native yeasts? Read on, because I explain how to make your very own starter.

Because I love good food

I already confessed my foodie tendencies with you all. I reckon it’s the same inclination that led me into the world of homemade sourdough.

Locally made sourdough starter, with the native yeasts of the area present, is certainly the thing a foodie’s dreams are made of. A jar of healthy, productive starter is teaming with life, as evidenced by all the bubbles you will see rising to the surface.

Once you’ve experienced homemade sourdough baked goods, store-bought breads and pancakes simply don’t cut it. Sourdough has a depth of flavor that just can’t be found in something made quickly with a packet of instant yeast.

This post contains affiliate links, which means I make a small commission at no extra cost to you. See my full disclosure here.

FAQ:

hand holding a wooden spoon in a bowl of sourdough starter with a blue and white towel to the left

How long does it take to make sourdough starter?

It takes about a week to create an active sourdough starter, but sometimes it can take about two weeks to make a starter ready to bake bread.

Do you have to discard sourdough starter every time you feed it?

When you are first creating your sourdough starter, yes. If you donโ€™t discard you will have so much starter that it will be hard to keep healthy. This is because the more starter you have the more flour and water you will need to add for the yeasts and bacteria to feed on.

After having a starter for a while rather than discarding you can just use it in discard recipes. This is a much more useful way of removing some of the starter rather than throwing it in the trash.

How do you know your sourdough starter is ready to use?

You will know your sourdough starter is read to use when you feed it and after 4-12 hours it doubles in size and is super bubbly. A good way to be able to determine this, is to place a rubber band where the top of the starter is after you feed it. Then after a few hours have passed you can see just how high it has grown.

Another way is to perform the float test. Take a small glass of room temperature water. Add a quarter sized dollop of active starter. If it floats, it is ready to bake with. If it doesnโ€™t it is not active enough.

Sourdough Starter Recipe:

By now, you know why you want to have a bowl of sourdough starter bubbling away in your kitchen, but how the heck do you make one?

Ingredients

Flour (Whole grain wheat, unbleached all-purpose, and einkorn are all great choices.)

Filtered water (I use a Berkey water filter. We have the Royal size for our family of 7. You can find my full Berkey review HERE.)

Tools

Glass bowl (Metal can react with beneficial bacteria and yeasts.)

Wooden spoon

Tea towel

How To Make Sourdough Starter

Day 1:

On day one, mix one cup of flour and one cup filtered water. Stir vigorously, making sure to scrape down the sides and incorporate everything. Place a clean tea towel over the bowl and set aside. Allow it to sit for 24 hours.

Day 2:

On day two, discard half of the mixture and repeat the process. Add one cup flour, one cup water, stir vigorously, and cover.

Why do you have to remove half the mixture? By day four, you would have sourdough starter overflowing from your bowl. Also, removing half ensures that the right amount of flour and water is feeding the growing colony of beneficial yeast. If you weren’t discarding half, the cup of flour wouldn’t be enough to feed them on days three and four. Basically, you would end up with a lot of extra starter by the end of the process, and none of it would be mature.

Day 3-5

Repeat the day two instructions for days three, four, and five.

Day 6-7

On days six and seven, do the same but feed it every 12 hours, instead of every 24.

By day seven, there should be enough beneficial bacteria and yeast present to bake sourdough bread and other fermented sourdough goodies, like pancakes and english muffins.

You will know it’s working if it bubbles, and doubles in size.

Sourdough Starter Maintenance

Once your sourdough starter is alive and active, there will be some maintenance to keep it going for years and years.

In the refrigerator for occasional use

Storing it in the refrigerator slows down the fermentation process, so one feeding per week, or every other week, is sufficient.

I usually use my starter a couple times per week. If I plan to make pancakes Saturday morning, for example, I will pull my starter out of the fridge Friday morning and add flour and water. By Saturday morning it is bubbly and ready to go.

I remove the two cups of starter needed for my pancake recipe, and put the “master starter” back in the fridge. Since it was fed the day before, it is good to go for another week, or whenever I need it next.

On the counter for daily use

Since the “little guys”, as my kids like to call the bacteria in the starter, are active at room temperature, they will have to be fed more often if keep it in this state.

If you leave your starter out on the counter, you will need to add flour and water every day. You will also have to be baking every day to use up all that starter.

Most people probably won’t use the starter quite so much, unless you own and operate a bakery. I would recommend storing it in the refrigerator between uses.

Video tutorial on how to make a sourdough starter from scratch

Helpful Resources

Every day I get loads of questions about sourdough starter, so I devoted a whole post called, How to Care for Sourdough Starter filled with your questions and my answers. You can use this post a reference guide.

Thank you so much for stopping by the farmhouse! I hope this is just the beginning of our sourdough journey.

Check out my other sourdough recipes and posts

If you try this recipe and love it, I would love if you gave it 5 stars! Also, tag me on Instagram @farmhouseonboone.

Sourdough Starter

4.53 from 1073 votes
Learn how to make a homemade sourdough starter from scratch. Video tutorial also includes sourdough health benefits and our favorite ways to use sourdough starter in the farmhouse.
Additional Time: 7 days
Total: 7 days
Servings: 1 sourdough starter
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Ingredients 

  • Flour, Whole grain wheat, unbleached all purpose, and einkorn are all great choices.
  • Filtered water

Instructions 

  • On day one, mix one cup of flour and one cup filtered water. Stir vigorously, making sure to scrape down the sides and incorporate everything. Place a clean tea towel over the bowl and set aside. Allow it to sit for 24 hours.
  • On day two, discard half of the mixture and repeat the process. Add one cup flour, one cup water, stir vigorously, and cover.
  • Repeat the day two instructions for days three, four, and five.
  • On days six and seven, do the same but feed it every 12 hours, instead of every 24.
  • By day seven, there should be enough beneficial bacteria and yeast present to bake sourdough bread and other fermented sourdough goodies, like pancakes and english muffins. You will know itโ€™s working if it bubbles, and doubles in size.

Notes

Sourdough Starter Maintenance

  • Once your sourdough starter is alive and active, there will be some maintenance to keep it going for years and years.

In The Refrigerator For Occasional Use

  • Storing it in the refrigerator slows down the fermentation process, so one feeding every week, or every other week, is sufficient.
  • I usually use my starter a couple times per week. If I plan to make pancakes Saturday morning, for example, I pull my starter out of the fridge Friday morning and add flour and water. By Saturday morning it is bubbly and ready to go. I remove the two cups of starter needed for my pancake recipe and put the โ€œmaster starterโ€ back in the fridge. Since it was fed the day before, it is good to go for another week, or whenever I need it next.

On The Counter For Daily Use

  • Since the โ€œlittle guysโ€, as my kids like to call the bacteria in the starter, are active at room temperature, they will have to be fed more often if kept in this state.
  • If you leave your starter out on the counter, you will need to add flour and water every day. You will also have to be baking daily to use up all that starter.
  • Most people probably wonโ€™t use the starter quite so much, unless you own and operate a bakery. I would recommend storing it in the refrigerator between uses.

Nutrition information is automatically calculated, so should only be used as an approximation.

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Recipe Rating




2,246 Comments

  1. Cyndi Henson says:

    Can I use fresh spring water. Itโ€™s unfiltered have any chemical additives?

    1. Lisa Bass says:

      Yes, that should work!

  2. Paco says:

    Can you clear something up please? ๐Ÿ™‚

    On this page you say you fed on Friday, made pancakes on Saturday and put the starter back in the fridge without feeding again since it was just fed on Friday. However, on the Maintaining and Feeding A Sourdough Starter page you indicated that you fed the starter Friday, made pancakes on Saturday, fed it and left it on the counter for 8 hours, then put it back in the fridge. Not trying to be picky, but I’m a newby and really trying to learn and understand. Should you feed or not feed after using in a recipe? Thank you!!!

    1. Lisa Bass says:

      You can do either! If it helps your routine, you can always feed it after you bake with it.

  3. Cheryl says:

    My starter will not float in water. Should I continue to feed it or is it ok to use? It is definitely bubbly and seems to be growing.

    1. Lisa Bass says:

      Some find the float test to be inaccurate. You can always try to bake with it or use the starter in discard recipes.

      1. Lisa Bass says:

        That should work just fine.

  4. Beth says:

    I have a couple of questions.
    1. If you start with whole grain wheat flour, is it best to stay with that?
    2. Just to be clearโ€ฆif your starter hasnโ€™t doubled, do you still move on and continue by discarding half and adding a cup of flour and a cup of water?
    3. When you start to feed 2X daily, do you still discard half?
    4. What if your starter turns liquidity overnight?

    1. Lisa Bass says:

      1. You can change it if you’d like. If you do, you should stick with that flour and not change back and forth.
      2. Yes, still discard and feed again.
      3. Yes, always discard half!
      4. It sounds like it may need a little more flour next time you feed it. That’s telling you that it is hungry and wants to be fed again. Just stir it in and feed it again.

  5. Courtney says:

    4 stars
    On day three. How do you know if itโ€™s working. I see bubbles but I canโ€™t tell if its just air rising to the top. Not a lot of activity and its not getting any bigger.

    1. Lisa Bass says:

      That’s normal for day 3. It can take up to two weeks before your starter matures.

  6. Nell says:

    My starter wasn’t bubbly after the 2nd day. it’s never risen. I’m on Day 5 and it is totally inactive. My house is usually 65 degrees so I place the starter near a pellet stove so that it is in a warmer environment. Is the starter dead?

    1. Lisa Bass says:

      It can take up to two weeks to see activity. Your home does sound a bit cold!

  7. Carolina says:

    Hi! I am wondering if it is time to throw in the towel and start from scratch. I followed your directions to a tee and on day 7, it had doubled in size, bubbled over my jar and everything. Prepped my ingredients to make my first loaf and when I did the quarter test to see if the started floated, it sank straight to the bottom. ๐Ÿ™ So i added another cup of flour and water and was at it again. I switched it to a larger ceramic bowl since my glass bowl/jar got so messy. I have since kept proceeding with 1 cup of each after 12-24 hrs and it seems to be bubbly but it’s not growing anymore. I did another quarter test last night and it’s still sinking. But I did notice bubbles rising to the top of the water. During the initial 7 days, (day 3 & 4) I got also got a water film on top. Did I completely mess it up? Not trying to give up because I feel like I’ve come so far but honestly have no clue whether I am just wasting my time on day 12 now. ๐Ÿ™

    1. Lisa Bass says:

      If you’re getting activity, I would try baking with it to see how it performs. It will continue to get stronger over time.

  8. Sara says:

    Question, for the daily discarded half, can I add the flour and water daily feeding to the discard in a separate jar to have multiple starters? I want to gift them, and thought it made more sense to utilize the discarded half as opposed to just throwing it out.

    1. Lisa Bass says:

      No because then you would need to discard all of those starters each time while they are growing. Once your starter is established, then you can gift your starter to your friends directly from your jar.

  9. Kathryn says:

    I’m on the second day and mine is throwing off a TON of hooch. Any suggestions?

    1. Lisa Bass says:

      Did you discard before you fed your starter on the second day?

  10. Suzette Surratt says:

    5 stars
    Hi Lisa,
    Iโ€™m currently ending day 6 of my starter and just curious if I need to continue feeding every 12 hours for a few more days or after day 7 can I feed it every 24 until itโ€™s ready? Starting out it was rising and very bubbly and about half way through it started to hooch so I took your advice down below on anotherโ€™s comment and discarded my starter down to 1/2 cup then I started feeding it 1cup flour 3/4cup water. It has the right consistency now (of like a pancake batter) but it hasnโ€™t been as bubbly as before. Also I tested a little bit in water tonight(I know itโ€™s a day to soon but Iโ€™m so excited to start making bread lol) anyways it sunk straight down. Also side note Iโ€™m using whole wheat flour so Iโ€™m not sure if thatโ€™s going to make my starter take longer than a week? Please help ! By the way thank you for your blog & podcast! I describe you to others as the homemaker of all homemakers!

    1. Lisa Bass says:

      Since you are using whole wheat, it can take a bit longer for your starter to become established. I would go back to feeding 1x per day and see if you see more activity a little later in the day.