Gluten-Free Sourdough Starter

An easy recipe for gluten-free sourdough starter. With just two ingredients, you can easily create your own gluten-free sourdough starter from scratch. Once the starter is active, use it to make crusty loaves of gluten-free sourdough bread at home!

Gluten-Free Sourdough Starter Recipe

Sourdough bread has been rising in popularity the last few years. If you’ve been wanting to make a loaf, but also need to it to be fully gluten free, then you’ve come to the right place.

The gluten-free sourdough bread begins with a starter, a combination of flour, water, and wild yeast from the environment that creates a live fermented culture. The sourdough starter is what gives the bread a nice, fluffy rise without the use of commercially prepared yeast.

Easier than you think!

The idea of creating a gluten-free sourdough starter may seem a bit overwhelming, but it’s a lot easier than you think. You need just two ingredients to get started and a few minutes each day to feed it. Within about two weeks, you’ll have a homemade sourdough starter that you can continue to feed and use in all your favorite gluten-free sourdough recipes.

Although the process is quite easy, there are a lot of things to note when you’re getting started, such as proper temperatures, the right tools to use, how to know if it’s working or if you need to start over, and so on.

This detailed gluten-free sourdough starter recipe helps take the guesswork out of it. Read the post in its entirety before getting started and keep it handy to reference while working on your starter.

Ingredients for Gluten-Free Sourdough Starter

Whole Grain Gluten-Free Flour: There are a few different types of gluten-free flour that can be used in a sourdough starter (for example: brown rice flour, buckwheat flour, sorghum flour, millet flour, etc.), but the most important thing is to avoid options with added starches, gums, and other additives. For this recipe, I used brown rice flour.
Filtered Water: Regular tap water can have chlorine in it, which inhibits the growth of good bacteria, so it’s best to use filtered water. Do not use distilled water since that won’t have the minerals needed for making an active sourdough starter.

Supplies Needed

Food Scale: A lot of measuring is required. Be sure to use a food scale rather than guessing or estimating quantities.
Glass Jar: A 1-quart glass jar should be large enough for a sourdough starter. A clear, straight-sided jar is best so that it’s easier to scrape down between feedings. Extra ridges in the jar can be a breeding ground for mold.
Wooden Spoon: Some experts say a wooden spoon is needed when making a sourdough starter and others say stainless steel is fine. Some warn to stay away from metal or stainless steel utensils because sourdough is made with acid that will react to the metal. Experts are split on if this matter, but we recommend sticking to a wooden spoon to be safe.
Silicone Spatula: Use a flexible one to scrape down the inside of the jar at each feed.
Colored Tape or an Elastic Band: This will be placed on the outside of the jar to measure growth of the starter between each feed. Choose something that’s easy to move along the jar and won’t fall off easily.
Clean Towel or Food-Safe Plastic Wrap: The sourdough starter will need to be covered in between feedings. Do not seal the jar completely. You need air to grow the yeast, so a light cover will maintain airflow.

How to Make Gluten-Free Sourdough Starter

Weigh the empty glass jar. You’ll refer back to this weight daily so make sure you write the number down and have it near your prep area.
Day 1 First Feed: In the clean and dry glass jar, add 50 grams of brown rice flour and 50 grams of room temperature filtered water. It’s okay if you’re a few grams above or below 50 grams each when doing the daily feedings. The consistency should look like a thin paste that’s a bit thicker than pancake batter. Add a little extra water or flour if needed. Stir well with a wooden spoon, then use the spatula to scrape down the inside of the jar. Place the colored tape or elastic band at the height of the starter. Cover the jar loosely with a clean towel or plastic wrap and set it in a warm location in your home away from direct sunlight.
Day 1 Second Feed (12 hours after Day 1 First Feed): Stir the starter with a wooden spoon. Add an additional 50 grams of brown rice flour and 50 grams of room temperature filtered water. Stir well with a wooden spoon. Use the spatula to scrape down the inside of the jar. Move the colored tape or elastic band to the height of your starter. Cover the jar loosely with a clean towel or plastic wrap and set the jar back in a warm location.
Day 2 First Feed (12 hours after Day 1 Second Feed): Repeat steps of Day 1 Second Feed.
Day 2 Second Feed (12 hours after Day 2 First Feed): Repeat steps of Day 1 Second Feed.
Day 3 First Feed (12 hours after Day 2 Second Feed): Stir the starter with a wooden spoon. Discard all but 100 grams of the starter. This is where your math comes in handy. Let’s say your jar was 730 grams. When you stir and discard all but 100 grams of starter, your food scale should now read approximately 830 grams (730 grams for the jar, plus 100 grams for the starter in it). Now add an additional 50 grams of brown rice flour and 50 grams of room temperature filtered water. Using the math, the 730 jar plus the 100 grams of starter in it plus the 50 grams of additional brown rice flour plus the 50 grams of additional filtered water, the weight of all would now be around 930 grams. Stir well with a wooden spoon. Use the spatula to scrape down the inside of the jar. Move the colored tape or elastic band to the height of your starter. Cover the jar loosely with a clean towel or plastic wrap and set the jar in a warm location in your home.
Day 3 Second Feed (12 hours after Day 3 First Feed): Repeat the steps of Day 3 First Feed.
Day 4 First Feed (12 hours after Day 3 Second Feed): Repeat the steps of Day 3 First Feed.
Day 4 Second Feed (12 hours after Day 4 First Feed): Repeat the steps of Day 3 First Feed.
Day 5 First Feed (12 hours after Day 4 Second Feed): Repeat the steps of Day 3 First Feed.
Day 5 Second Feed (12 hours after Day 5 First Feed): Repeat the steps of Day 3 First Feed.
If you’re seeing good bubbles and a rise in your starter (almost doubling in height between feeds), then move onto Day 6 Feed instructions. If you aren’t seeing a good rise yet, don’t panic! Continue with Day 3 First Feed instructions until you’re seeing bubbling and height in your starter. The amount of time it can take to see a good rise is dependent on a lot of factors, including time of year, temperature inside the home, type of flour used, temperature of water used, etc. Be patient and keep going even if you aren’t seeing a lot of activity yet. If you’re seeing absolutely no activity (no bubbles, still a very loose consistency before feeds) after 5 days, it’s probably time to start over.
Day 6 Feed (24 hours after Day 5 Second Feed): It’s now time to move to once a day feeds. Stir the starter with a wooden spoon. Discard all but 100 grams of the starter. Add an additional 100 grams of brown rice flour and 100 grams of room temperature filtered water. Using the math, the 730 gram jar plus the 100 grams of starter in it plus the 100 grams of additional brown rice flour plus the 100 grams of additional filtered water, the weight of all would now be around 1,030 grams. Stir well with a wooden spoon. Use the spatula to scrape down the inside of the jar. Move the colored tape or elastic band to the height of your starter. Cover the jar loosely with a clean towel or plastic wrap and set back in a warm location.
Day 7 Feed (24 hours after Day 6 Feed): Repeat the steps of Day 6 Feed.
Repeat the steps of Day 6 Feed every 24 hours until you’re seeing the starter double in size within 4 to 6 hours after feeding. It should also have a pleasant, yeasty bread smell. Now, it’s finally ready to use for baking a loaf of gluten-free sourdough! This could take another full 7 days of daily feeds so be patient.
Once your starter is at the maintenance phase, it can be stored in the fridge and will need weekly feedings. For weekly maintenance feeds: Stir the starter with a wooden spoon. Discard all but 100 grams of the starter. Add an additional 100 grams of brown rice flour and 100 grams of room temperature filtered water. Stir well with a wooden spoon. Use the spatula to scrape down the inside of the jar. Move the colored tape or elastic band to the height of your starter. Cover lightly and place back in the fridge.
Before using for baking, remove the starter from the fridge, let sit at room temperature, feed as normal (100 grams each of starter, flour and filtered water) then let sit for 4 to 6 hours until you see peak rise. If the starter hasn’t peaked within 12 hours, do another feeding (100 grams each of starter, flour and filtered water).

Sourdough Starter in glass jar being weighed on food scale.

Tips for Making the Best Gluten-Free Sourdough Starter

The amount of flour and filtered water needed for this recipe varies depending on how long it takes to build a strong active sourdough starter. Depending on the time of year, the temperature in your house, and other factors, it could take 2 full weeks to see a good rise in your sourdough starter. This recipe calls for 3 pounds of gluten-free brown rice flour to start, but you may not need all of it.
Store the jar of sourdough starter in a warm, draft-free area. Do not place this by a window, a door, a cold exterior wall, or in direct sunlight (too much heat will kill the yeast).
For the first week, the sourdough starter is going to smell bad. This is normal! As long as there isn’t mold growing in it, it’s still good. It takes at least a week (usually two weeks) before it starts emitting a pleasant, yeasty bread scent.
When you switch from twice a day feedings to once a day feedings, it’s normal for the activity level to decrease. You may see less rise and not as many bubbles. This is normal and usually lasts 2 to 3 days after switching to once a day feedings. Just keep going with the 24 hour feeds and your starter will start to become more active again.
Keep the mouth of your jar, the lid area, and any ridges inside the jar clean. Use a slightly damp clean cloth to wipe the inside of the jar down after every couple of feeds. If you leave old starter to dry out and stick to the inside of the jar, it could be a breeding ground for mold.

How Long Does It Take To Make A Gluten-Free Sourdough Starter?

The length of time it takes to create a strong active gluten-free sourdough starter depends on a lot of different factors: type of flour used, time of year, temperature in your home, etc. You should start to see a few bubbles and some rise after the first 5 to 7 days. You should start to see good activity (lots of bubbles and almost doubling in size) in give or take 14 days.

Gluten-Free Sourdough Starter in glass filled to the top of the jar

What Happens If You Miss A Feed For Your Gluten-Free Sourdough Starter?

A sourdough starter can be quite forgiving. If you miss a feed by a few hours or even a day, just pick up where you left off. You may see a decrease in activity at first, but it’ll pick up within a couple of days after regular feedings are resumed.

Does All Of The Gluten-Free Sourdough Starter Discard Need To Be Thrown Away?

No, there are still lots of uses for sourdough starter discard! Although the discard won’t be good for bread, you can use the discard to add a distinct tangy flavor to biscuits, muffins, cookies, and pancakes. Store the discard in the fridge if you plan to use it later for another recipe.

There’s Liquid In My Sourdough Starter—Do I Need to Throw It Away?

If your starter starts to get a liquid forming on the top of it, it’s likely hooch (a naturally occurring alcohol). This sometimes starts to form if it’s been too long between feedings. Pour it off and continue feeding your starter as normal.

What Are Signs That My Sourdough Starter Has Gone Bad?

Once your starter has mold growing in it, you’ll unfortunately have to discard it all and start over again. If your starter starts changing colors or getting a pink, white, green, brown, or black layer over the top, it’s time to throw it away and restart.

However, if you see a bit of mold on the jar only, wipe it off carefully and transfer your starter to a new clean jar.

How to Store Sourdough Starter

Store gluten-free sourdough starter in a clean, covered jar at room temperature indefinitely. If you plan to feed it less often, store it in the refrigerator.

Gluten-Free Sourdough Starter in glass jar with tape on the jar

While some patience and measuring are required, once you get the hang of this gluten-free sourdough starter recipe, it’s easy to keep it going. You’re just two weeks from a lifetime of delicious gluten-free sourdough bread!

More Gluten-Free Bread Recipes to Try!

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gluten-free sourdough starter in a glass jar with a lid

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