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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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. Marina says:

    When you create the starter should you use an open glass bowl? Do you keep it in the fridge open as well?

    1. Lisa Bass says:

      Keep it closed when in the fridge.

  2. Jeanette Rogers says:

    WhT does โ€œfeed itโ€ mean? With whatโ€

    1. Lisa Bass says:

      You feed it daily with flour and water!

  3. Tori Lucas says:

    Started my starter 8 days ago. It was doing really good. It was bubble every time I went to feed it. However I noticed on day 4 or 5 canโ€™t remember it was no longer bubble. I did start feeding it every 12 hours on day 5. I jumped the gun. However it has not been bubble since day 4 or 5. Do I give up on it or will it come back. It been out on the counter top the whole time. I did back off feeding it. I fed it morning of day 7 and then fed it again morning of day 8.

    1. Lisa Bass says:

      I would try going back to feeding once per day.

      1. Anonymous says:

        How long do you think I need to fed it before I can start using it since Iโ€™m on day 8?

        1. Lisa Bass says:

          A couple more days and you should be good.

          1. Ruth says:

            What is filtered water? We have well water and also have a filter on it. Can I use the tap water?

          2. Lisa Bass says:

            Yes, that should be fine. You are just wanting to avoid chemicals in the water from city/tap water with flouride and chlorine.

  4. KK says:

    Hi! Iโ€™m on day 4 and my starter hasnโ€™t risen at all, but I keep getting a whole bunch of hooch. Iโ€™ve been feeding it every 24 hours, but do I need to be feeding it more often?

    1. Lisa Bass says:

      Are you discarding before you feed it?

      1. KK says:

        I am. Iโ€™m mixing it and then discarding half of the mixture.

        1. Jessica says:

          I am having the same problem. Not much rise and lots of hooch each time. I mix and discard 1/2 each time then add 1:1 cup of flour and water. The mix is very thinโ€ฆ I thought it was suppose to be thicker like pancake batter once you feed it. I am going on day 6 to start 12 hour feedingsโ€ฆ hope something changes!

          1. Lisa Bass says:

            Hi there! Try adding 1 cup of flour and 3/4 cup of water next time. It may just need a little more flour.

          2. Sarah says:

            At first I did not notice the instructions to discard half and I only was discarding half a cup. I have also noticed liquid on top everyday but no activity. I had seen someone explain that liquid that is lighter in color might be an indication of too much liquid for the amount of flour to absorb rather than it being a real hooch. I have had to change it up by saving only 1/4 cup of starter and mixing in 1/2 cup unbleached organic flour with slightly more than 1/4 cup filtered water. I am finally seeing some bubbles and dealing with a much smaller amount of discard each day. I haven’t given up yet and even feel brave enough to try to change a few things because of how much Lisa encourages an uncomplicated can do attitude.

  5. T says:

    5 stars
    Easy to follow directions. This was my first attempt at sourdough starter.

    1. Robin Cooke says:

      So I kinda have a question โ“ I’m on day 4 of just starting, I’m using whole white wheat flour and it’s already doubled in size ….. So is it ready to start using? Or do I wait for the full 7 days?

      1. Lisa Bass says:

        That is normal! Wait the full 7 days for best results.

  6. Kelsey Lawrence says:

    Do I need to do 2x a day on days 6 and 7 or can I just stick with 1x a day. I only ask as my work schedule would make 12 hr feeds difficult. And if the 12 hr feeds those 2 days are needed, do you continue those feeds or go back to once a day?

    1. Lisa Bass says:

      You can probably skip it and feed it for a few additional days. Even feeding every 18 hours would be better than skipping the 12 hour feedings.

  7. Brenda Reau says:

    Can I purchase distilled water from the store to use if I don’t have a way to filter my water?

    1. Lisa Bass says:

      Yes.

  8. Linsi Youngblood says:

    5 stars
    Hello! I started my first starter (whole grain) about 2 1/2 weeks ago. I am new to this, and have no idea how to prepare it for baking. I am not seeing it rise much, if at all. The only time it has risen is when I put it outside in direct sunlight. Even then it only rises about 1/2-1 cup. It feels plenty warm when this happens. I keep it on top of the fridge. Everyday I use room temp filtered water, and discard half, adding 1c water and 1c flour. It gets quite bubbly on top, but not so much in the middle. Sometimes I go a little too long without feeding it and it develops hooch, which I stir back into it before discarding half and feeding. My questions are: Do I need to continue discarding half before each feeding? If so, if I have been maintaining 2 1/2-3c starter before each feeding, how much flour and water should I add after discarding half? How can I get more of a rose and how many feedings should I give it before baking bread with it? Iโ€™m sorry for so many questions! I am lost here! ๐Ÿ˜…

    1. Lisa Bass says:

      It rising 1/2 cup is still great! It’s a developing starter. It will get stronger as time goes on. Make sure to stir everything together really well before discarding and feeding again.

  9. Kerrie louise says:

    Do you disgard half on days three and four too? X

    1. Lisa Bass says:

      Yes.

  10. Johanne says:

    If my sourdough is ready it have 1 cup starter. How to I make a 2 cups of sourdough in a recipe that need 2 cups?
    Thank You!

    1. Lisa Bass says:

      Feed it more! Just keep the 1-1 ratio of flour and water, but you can feed it as much as you want!