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.

Want to save this recipe?
Just enter your email and get it sent to your inbox! Plus you’ll get new recipes from us every week!
Please enable JavaScript in your browser to complete this form.

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 1052 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
Save this recipe!
Just enter your email and get it sent to your inbox! Plus you’ll get new recipes from us every week!
Please enable JavaScript in your browser to complete this form.

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.

Like this? Leave a comment below!

Sharing is caring!

4.53 from 1052 votes (932 ratings without comment)

Leave a comment

Your email address will not be published. Required fields are marked *

Recipe Rating




2,073 Comments

  1. Sherry Schulz says:

    Thank you for your great instructions and recipes. My sister sent me you link as she really enjoys as well. Looking forward to making my starter. Cheers

    1. Lisa says:

      Good luck with your sourdough starter! i can’t wait for you to start baking sourdough creations!

  2. Sara says:

    Today is day 5 of making the starter. I’ve had the liquid standing on top for the past 2 days. I’ve just been stirring it back in before I discard half and feed again. I read that it should be poured off. Did I mess it up or is it still ok to use. It currently smells like a strong sour cream.

    1. Lisa says:

      It is still fine. You didn’t ruin anything. But the starter is saying it is hungry. I wonder if it needs to be fed more flour and water. Are you measuring it out?

      1. Sara says:

        I’m so glad to hear that. I am exact measuring the feed, however I had eyeballed the discard a couple times.

  3. MJ says:

    Is there a formula for subbing sourdough starter in other recipes? For example, I make homemade crackers, pita bread, etc. and I like those current recipes but am wondering if/how sourdough could be substituted/included?

  4. MJ says:

    Can bread flour be used?

    1. Lisa says:

      Yes.

  5. Tanya says:

    Question on weekly feed.is it 1cup flour and 1 cup water?and do I have to discard half mixture when doing this?

    1. Lisa says:

      It will depend on the amount of starter you have. You do not have to discard half of the mixture if you do not want to. If you have too much starter it may be a good idea to discard to prevent having to feed it a lot of flour and water to keep it healthy.

  6. Claire says:

    I haven’t made in a few years and forgot about and ruined my last jar. I’m on day five of this one, very few bubble’s on sides of jar and some water separates on top. It’s mixed very well but each day, water on top. Also uses so much four! I’ll wait to see bubbles after today but never had this issue is past, wondering why? Thanks

  7. Danielle says:

    Hi. Iโ€™ve been following this, Iโ€™m on day 7, and my starter has never risen. I keep it on top of my fridge so itโ€™s at about 68-70. Itโ€™s very very bubbly but not rising. Can you help?

    1. Lisa says:

      Sometimes it takes more than 7 days, especially in the winter when the temperatures are cooler. Is there a slightly warmer place to keep the starter?

  8. Mary Dayle Corley says:

    Hello again! I meant to ask how to increase the amount of starter. I continue to remove half and add the same amount of flour and water every time. Ther must be something I’m missing about how I can have 2 cups of starter to use to make bread when my starter only makes 1 or 1 and1/4 cups every time it is fed.
    Maybe I should’ve looked for FAQs to see if this question has already been asked! Thank you again!

    1. Lisa says:

      So once your sourdough starter has been established, you don’t actually need to keep discarding. You can either use the “discard” in recipes, or just feed. The problem with not discarding is that you have to feed your starter more flour and water to keep it healthy. Not discarding will help you build up the starter.

  9. Mary Dayle Corley says:

    Hello, Lisa. I am so thankful for all you’ve shared about making sourdough starter and making the bread.
    I have a question about knowing when your starter is ready. I see that mine is bubbling and more than doubled within 8 hours of feeding, but when I do the water test, it sinks to the bottom. I just don’t want my first loaf to be a brick. Do you have any suggestions? Thank you so much!

    1. Lisa says:

      Hm that is interesting. The point when you want to use your sourdough starter is right about when it has doubled or right before. If it is after the peak, when it starts to fall, then the bread won’t rise well. Now this isn’t something that you need to be watching until the minute it peaks or all else fails. There is a lot of wiggle room.

  10. Nancy Tapping says:

    I’m on day 3 of my starter that came from my daughter’s discard.i have been following the feed daily with half cup starter, half cup water and a scant cup of flour. It is bubbling right out of my 2 cup jar. When and how do I increase the volume so that I have enough to bake with weekly?

    1. Lisa says:

      When you start with a already established starter (or discard) you actually don’t need to follow this schedule. You can just feed and use at this point. If you don’t discard any of the starter and then just feed equal amounts, the starter will grow to a point you will have plenty. You can also keep it in the fridge until the day before you want to bake. Feed it and then use it once it doubles in size. Hopefully that helps.