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 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 1047 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 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.

Like this? Leave a comment below!

Sharing is caring!

4.53 from 1047 votes (932 ratings without comment)

Leave a comment

Your email address will not be published.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

Recipe Rating




1,979 Comments

  1. Paula Miller says:

    5 stars
    My husband has Alpha Gal can I use oat flour to make this? I am wanting to get this started soon.

    1. Lisa Bass says:

      A gluten free flour should work.

  2. Stephanie says:

    Hello Lisa

    I’d like to say this is my second try at a sourdough starter, the first died many years ago lol. So I’m going to stick to it this time. I’m on day 4 and I notice it get bigger from yesterday to todays feed. Today I actually poured the entire container into a measuring cup and poured half out and put the cup of flour and water. I do notice a few lumps I have tried to mix it better to make it creamy all the way. I hope I am doing this right.
    Have a great day
    Stephanie

    1. Lisa Bass says:

      Sounds like you’re doing it right!

  3. Esther says:

    I’m using your recipe here (1 cup flour and 1 cup water) but in your video you say 1 cup flour to 1/2 cup water. Do both work? So this recipe calls for twice as much water as your other video suggests.

  4. Anonymous says:

    I’m using your recipe here but your video says 1 cup flour to 1/2 cup water. Do both work?

    1. Lisa Bass says:

      I prefer the 1:1 ratio.

  5. Jill Anderson says:

    Hi Lisa- love your videos!
    I’m trying once again to make the sourdough starter.
    I’m on day 4, but Im noticing after 24 hours when I uncover it to feed it, it looks very runny- and almost “separated” looking. I’m used an organic un-enriched flour and filtered water. Any ideas? Thank you!

    1. Lisa Bass says:

      Sounds like it is hungry and needs to be fed! Are you discarding enough before each feed? Discard to where you have around 1/2-1 cup of starter before feeding it this time. That should fix your issue!

  6. Esther says:

    Hi Lisa,

    I did Day 1 yesterday morning and this morning I took the cloth off the top to throw some out and add flour/water, but there were some moldy spots on top…after one day?! It’s been pretty warm in our kitchen (around 25 degrees) with the heat wave here – do you think this is why it went moldy? How do I prevent this?

    Thank you,
    Esther

    1. Lisa Bass says:

      Yes, it could be. Especially if it was warm enough for the jar to condensate. I would start over, since you’re not very far into the process. Make sure your jar is breathable and not too hot.

      1. Anonymous says:

        Thanks Lisa. I started again and so far so good. I watched your video yesterday though and you say 1 cup of flour and 1/2 cup water- and I see other recipes online say this too – but I’ve done 1 cup flour to 1 cup water as this recipe says. Wondering why there is a big difference?
        Thank you

        1. Lisa Bass says:

          It just depends on the hydration level of the starter. I prefer 1-1, but some people like a little more flour than water for a thicker consistency.

        2. Stephanie says:

          Can I just use regular flour, not whole wheat?

          1. Lisa Bass says:

            Yes.

  7. Karen says:

    Lisa, when I finally have the master starter to store in fridge, do I still discard half when I feed it once a week.

    1. Lisa Bass says:

      Unless you’re baking with it to use up some of the starter, I would still discard half!

  8. Vivian Yannelli says:

    5 stars
    Hi Lisa, I’m on day 2. I fed my starter at 1pm and noticed it had doubled but by 9pm it had fallen and hooch had formed in the middle. I think I over watered. My question is, can I just stir the hooch in and then add some flour or do I need to do the discarding process.

    1. Lisa Bass says:

      Still do the discarding. You can stir in the hooch before you discard though.

  9. Laura Sims says:

    5 stars
    Hi Lisa, I have been trying to make sourdough starter and really struggling. I tried someone else’s recipe, twice now and just can’t get it to do anything. I’m going to start over and try yours. My big issue is I’m just not seeing it double. Our kitchen is very warm because our wall between our kitchen and garage isn’t insulated. Is it maybe too warm?

    1. Lisa Bass says:

      I wouldn’t think your temperature being too warm would prevent it from rising. Have you gone a full two weeks feeding it? Sometimes it just takes a bit longer.

  10. Ronnie says:

    Hi, thanx for all the useful tips and info. Love watching your Facebook posts

    Just want to confirm… The discard for days 1-7, can that be used to bake anything at all? Would be a shame to throw it out
    Or can I only use the discard after the week

    1. Lisa Bass says:

      I like to discard it because the starter isn’t quite active yet, so it’s not as beneficial.