This easy sourdough starter method for beginners will help you develop an active, bubbly starter quickly with minimal effort.
With only flour and water and a little patience, you’ll enjoy the mild tang and airy texture that homemade sourdough brings to bread.
What is a sourdough starter
A sourdough starter is simply a mixture of flour and water that ferments naturally, cultivating wild yeasts and beneficial bacteria to leaven bread. Left at room temperature, a flour-and-water mix will attract microorganisms from the environment and begin to change. By feeding and caring for this mixture, you encourage a stable community of yeasts and lactobacilli that give sourdough its flavor and rising power.
Making your own starter from scratch is rewarding and simpler than it seems. Follow these steps to begin your sourdough journey.
Sourdough Starter For Beginners: Step-by-step Video
Ingredients For making Sourdough Starter
All you need is flour and water. Any flour works, but a mix of bread flour with a little whole-grain flour (whole wheat, rye, or spelt) speeds activity and adds flavor.
One simple ratio used here is 250 g bread flour + 50 g whole wheat flour (about 5:1 bread-to-whole-grain).
Sourdough Starter For Beginners: Step-by-Step Guide
There are many ways to build a starter; this is a straightforward, low-maintenance approach. The goal is to nurture the natural microbes until the starter is stable, active, and able to leaven bread reliably.
Day 1: Mixing Flour and Water
Mix equal parts flour and water in a small bowl until smooth. Transfer the mix to a straight-sided glass container and cover loosely—use a lid slightly ajar or cling film with a few pinpricks to allow airflow.
Leave the jar at room temperature (around 70°F / 21°C) for 24 hours. This begins the fermentation process.
Day 2: Stir and Transfer
On day two you may notice small bubbles. Give the mixture a gentle stir, then transfer it to a clean jar if you prefer. Cover loosely and let it rest at room temperature for another 24 hours.
Days 3–7: Daily Feedings
From day three, begin daily feedings using a 1:1:1 ratio by weight: starter:water:flour. For example, mix 30 g starter with 30 g (or ml) water and 30 g flour. Cover and leave at room temperature for 24 hours between feedings.
Expect visible changes: by day three you should see larger bubbles and some rise. Day four might be quieter—this is normal, so continue feeding rather than discarding.
From day five onward, activity should increase and the starter will begin to rise and fall over a 24-hour period. By the end of day seven you will likely have a young, developing starter that needs more strengthening.
When the starter reaches its maximum rise each cycle, that point is called the “peak.”
Days 8–10: Feed at Peak
From day eight, feed your starter whenever it reaches its peak rather than on a fixed schedule. This frequent feeding encourages a stronger, faster starter.
By day ten the starter should be lively: pleasant yeast aroma, mild sourness, lots of bubbles. A common readiness test is the float test—drop a spoonful of starter into a bowl of water; if it floats, it’s airy and ready to leaven dough.
If your starter isn’t quite ready by day ten, continue the peak-feed routine for a few more days until it shows consistent rise, aroma, and bubbles.
Once established, experiment with different flours and hydration levels to shape the starter’s flavor and performance. Sourdough baking combines art and science—each starter and loaf will develop its own character with time and care.
Gather your flour and water, be patient, and enjoy the process. Your sourdough adventure is just beginning.
Print Recipe
How to make Sourdough Starter For Beginners
Equipment
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Straight-sided glass container
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Spatula
Ingredients
- 250 g Bread flour
- 50 g Whole wheat flour(or other whole-grain flour such as rye or spelt)
Instructions
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What is a sourdough starterA sourdough starter is a fermented mix of flour and water used to make sourdough bread.
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Day 1: Mixing Flour and WaterMix equal parts flour and water until smooth. Put the mixture into a glass container and cover loosely. Let it sit at room temperature (around 70°F) for 24 hours.
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Day 2: Stir and TransferYou may see small bubbles. Stir gently, transfer to a clean jar if desired, cover loosely, and rest at room temperature another 24 hours.
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Days 3–7: Daily FeedingsFeed daily with a 1:1:1 ratio by weight: starter : water : flour (for example, 30 g starter + 30 g water + 30 g flour). Cover and let rest 24 hours between feedings. Expect increasing bubbles and rising activity by day 5.
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Day 4 may show less visible activity—this is normal; continue feeding.
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By the end of day 7 you’ll have a developing starter; from day 8 begin feeding whenever it reaches its peak to strengthen it.
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Days 8–10: keep feeding at peak. By day 10 the starter should be lively, aromatic, bubbly, and likely able to float in water—an indication it’s ready to leaven dough.
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If it’s not ready by day 10, continue the feeding routine for a few more days until consistent activity is observed.