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 don’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 doesn’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 1188 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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Just enter your email and get it sent to your inbox! Plus you’ll get new recipes from us every week!

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 it’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 “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 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 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.

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

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Recipe Rating




2,962 Comments

  1. Lynn says:

    5 stars
    Hi there! I’m on Day 4 of discard/feeding my starter and I think I might’ve screwed up! I started w/whole wheat flour and I’ve been feeding it each day with whole wheat flour instead of all purpose flour. Should I start over or maybe just start using all purpose flour starting tomorrow’s feed?

    1. Lisa Bass says:

      Keep going. You are fine.

      1. Lynn says:

        Thx Lisa. Should I continue to use the whole wheat flour or switch to AP?

  2. Mel says:

    5 stars
    I’m on day 5 and have an inch of bubbles on the top… my first time making my own starter and I’m far too excited about this … I buy sour dough bread daily so am gunna save a fortune, it’s really worth the effort

  3. Ann says:

    Hi! I’m very excited about making my sour dough starter. I saw that you have videos on making the starter. Where can I find your videos?

    1. Lisa Bass says:

      They are all searchable on YouTube! Type in Sourdough Starter Farmhouse on Boone and it should come up.

  4. Suri says:

    HI I didn’t get any response. I see other people are managing so well with their starters. I’m up to day 10 and I never get bubbly the starter. only little tiny peaks of bubbles. Is it the cold weather? Teri what’s the weather like by you? I’m wondering what I’m doing different to the people who have so quickly such a good starter. I’m desperate to start baking my own sourdough bread. DO you think I could start with a starter that isn’t bubbling?

    1. Kandace says:

      I’m on day 7 and there are bubbles on the top but it’s not at all doubling in size.

      1. Lisa Bass says:

        Are you keeping it in a warm place and are you sure you haven’t missed it rising and falling? If you are doing all of that, I would suggest feeding 1 cup of flour to 3/4 cup of water. Sometimes that does the trick!

        1. Kandace says:

          Hi, yes I have been and it’s almost been two weeks at this point. It will rise every day just the tiniest bit (my jar will be at 600ml and it will rise 100ml) but it’s not even close to doubling in size and does not pass the float test. Do you have any other suggestions?

  5. Suri says:

    HI I didn’t get any response. I see other people are managing so well with their starters. I’m upto day 10 and I never get bubbly the starter. only little tiny peaks of bubbles. Is it the cold weather? Teri what’s the weather like by you? I’m wondering what I’m doing different to the people who have so quickly such a good starter. I’m desperate to start baking my own sourdough bread. DO you think I could start with a starter that isn’t bubbling?

  6. Nancy Pilgrim says:

    Hi. I love watching your videos. It certainly gives the feeling that I too can achieve this. Unfortunately, my starter isn’t where it should be given that I’ve been working on it for about three weeks. I’ve watched just about every question and answer video and applied what I’ve learned however my starter will only grow about half the size of what it is when it was fed. Never double the size. That process takes on average 9 hours. My question is, can I bake with it now or should I continue the discard and feed daily while maintaining an average temperature of 77 degrees.
    Please help. I want to bake so badly.

    1. Lisa Bass says:

      I would try feeding more flour and less water. When I see starter’s that just aren’t taking off, sometimes that will do the trick.

  7. Janet says:

    5 stars
    Followed the directions and for the first time was able have a perfect starter

  8. Teri says:

    5 stars
    Ok i just started my sour dough starter 2 days ago and its going crazy. I have it in a qt jar and even though I discard a half everyday it is growing so much. I tryed others in the past but they didnt do this good. I’m going to need to put it all in a big bowl. Then later on transfer it to qt jars for the fridge. Was wondering if you can freezer starter and if so how you go about doing that. Thank you so so much.

    1. Lisa Bass says:

      I would just keep discarding and move it ALL to one big jar! It will become a headache if you have multiple jars you are feeding and taking up room on your counter or fridge.

  9. Megan says:

    I am on day six and the starter is very bubbly- I woke up to it overflowing! I did the float test, and it passed. Do I still need to complete days 6 and 7 of starter prep or am I good to use it now?

    1. Lisa Bass says:

      You can try using it now! Congrats on such a bubbly, active starter.

  10. Maria Torres says:

    1 star
    Complete waste of flour and water. Four weeks in, and all I have is alcoholic, bubbly pancake batter. I am beyond disappointed because I got excited when I saw this recipe.

    1. Lisa Bass says:

      I am sorry you have not had luck with your starter.

    2. wolfgang pukk says:

      5 stars
      Skill issue