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 1048 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!
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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




1,992 Comments

  1. Molly says:

    5 stars
    This recipe is fabulous and as a new sour dough baker, it worked! Loaf was beautiful inside and out. Using the scale is the way to go.

  2. Debbie McChesney says:

    I can’t wait to get my own starter going! One big question…if I start with one type of flour, is that the flour that should always be used to feed it? I want to try using einkorn, but it’s not readily available here, so if it came down to it, could I use another kind of flour in a pinch?

    1. Lisa Bass says:

      Yes, you can change it!

      1. Anonymous says:

        Thank you!

  3. Colette says:

    4 stars
    Brand new at this. Day two, I have my starter in bowl, not clear what I do with the discard. Do I just put it in a jar and leave it on the counter and then add tomorrowโ€™s discard to it, and every day after, just add that discard to it? I canโ€™t find a lot of info as to how to maintain the discard each day. Also, when I can start using the discard. I see people making their starter in jars, but it seems like adding a cup of flour and water every day makes a huge amount of starter, way too big for jars! I feel like such a newbie and really need step-by-step on this, lol.

    1. Lisa Bass says:

      Keep the discard in the fridge or you can throw it out!

  4. Kayla says:

    I started my starter yesterday and when I went to discard and feed it I saw it had separated water on top so I mixed it discarded half and did a cup of flour and water and mixed. I just checked it and it has been three hours and it started to do the same thing water on top. Is this normal

    1. Lisa Bass says:

      Yes, it’s just a sign that your starter is hungry. Make sure you’re discarding half and feeding it at the right time. If you still see it, you may need to increase your flour.

      1. Anonymous says:

        Thank you! It seemed to be doing good but now I am on day five and have no bubbles should I start the 12hour instead if 24? It doesn’t smell the greatest either is that normal?

        1. Lisa Bass says:

          Make sure it keep it in a warm spot. I would feed it another day or two until you notice bubbles.

      2. Kayla says:

        My sourdough starter has not gotten bubbly and it will be 7 days tomorrow Sunday I have been discarding and feeding it. What should I do? It looked like it was bubbling on day three and then nothing.

  5. Amnette says:

    5 stars
    Hi. I’m on day three of my sourdough starter. It appears to be doing great! Bubbly and doubling in size but when I stirred and halved it tonight it smells awful! Not the “sour” smell that I was expecting. Also, I have worked with sourdough in the past so I am familiar with it. I haven’t made my own starter before. Is this normal or should I start over?

    1. Lisa Bass says:

      Yes, it is normal.

  6. Julie says:

    I am on day three…bottom layer is water/flour then a layer of hooch with another layer of flour/water on top. Do I shake the entire thing before discarding half?

    1. Lisa Bass says:

      Stir it up really well before discarding.

  7. Ashley says:

    Hi Lisa! Iโ€™m on day 8 of my started. It had one day where it doubled in size. But nothing since then. Itโ€™s slightly bubbly but still resembles pancake batter. On day 6-7 I was feeding every 12 hours but moved back to 24hr. However, it does start to create liquid on top when I feed on the 24hr mark. Is my house not warm enough (usually keep home between 68-71ยฐF). What could I be doing differently?

    1. Emily says:

      I had the same problem! I did some more research and found that most starter recipes say to use a 2/1 flour water ratio instead of 1/1. I used this ratio at my next feeding (1 cup flour and 1/2 cup water, if you weigh your ingredients it is a 1/1 ratio for weight). It immediately had great results, the starter rose beautifully! I’m not sure if this recipe is a typo or designed for someone in a different climate, but all it gave me was bubbles, no rise.

    2. Elise Carpenter Tordella says:

      5 stars
      Same question except I then al
      Plug it and added more flour and water. Doesnโ€™t seem to be growing now. Ugh. What to do?

      I need to fly tomorrow and do t have a babysitter for it. Do I put in fridge?? or leave it ? out –
      And, no one can feed it for me.

  8. Barb says:

    Greatโ€ฆeasy and clear! Going to make the starter for sourdough English muffinsโ€ฆdo you have the muffin recipe?

    1. Lisa Bass says:

      Yes, it’s on the website or you can find it here.

  9. Mary says:

    4 stars
    Mine is not growing. Why?

    1. Lisa Bass says:

      Are you feeding it and discarding it every day? Make sure to keep it in a warm environment. Don’t give up!

    2. Anonymous says:

      Try using a 2/1 flour/water ratio! This recipe didn’t work for me beyond making bubbles

  10. Karen hansen says:

    I am on day 6 and my starter hasnโ€™t doubled in size, it does have tiny bubbles. Iโ€™m getting ready to feed it again because Iโ€™m on the 12 hour feeding schedule. Maybe Iโ€™ll add less water this time. It smells sour so thatโ€™s a good sign.