Creating a sourdough starter is one of those topics that has been explained a thousand times—and yet somehow still manages to confuse people. There are books, blogs, videos, heated forum debates, and at least a few bakers who speak about their starter as if it were a moody house guest with a personality disorder.
So yes, this is another one of those explanations. Not because the world desperately needs one more—but because it belongs here, as part of a complete and honest approach to sourdough baking.
Let’s start with the obvious: you don’t actually have to create your own starter.
You can buy one. Companies like King Arthur sell established starters that have been maintained for years. Or you can ask someone you know who bakes sourdough and get a piece of theirs. That’s probably the oldest and most reliable method—starter as inheritance, passed from baker to baker like a quiet tradition.
The advantage is simple: it works. You’re getting a proven culture, already stable, already capable of raising bread. No guessing, no waiting, no wondering if the strange smell on day three is normal or the beginning of something you should throw away immediately.
But if you’re even slightly serious about sourdough, you will eventually want to create your own.
Not because it’s better in some measurable, scientific sense—but because it’s yours.
A starter captures wild yeast and bacteria from your environment. Your kitchen, your flour, your air, even your habits—all of it plays a role. That’s why two starters, created in different places, will never behave exactly the same. It’s also why bread baked in San Francisco tastes different from bread baked in Vermont, even when the recipe looks identical on paper.
Creating your own starter is less about necessity and more about identity. You are, in a quiet way, defining the foundation of every loaf you’ll bake.
And yes, once you’ve done that, you are expected—by long-standing, completely unnecessary tradition—to give it a name. Bakers do this without irony. Some names are clever, some are terrible, and some are treated with more respect than actual family members. You’ll understand why soon enough.
The standard method of creating a starter is almost suspiciously simple.
Take flour and water. Mix them. Let them sit.
That’s it—at least in principle.
In practice, you begin with equal parts flour and water (by weight, if you want to stay on good terms with the laws of baking). Stir until you have a thick batter. Leave it loosely covered at room temperature.
Over the next several days, you feed it. Discard a portion, then add fresh flour and water. Repeat. What you are doing is encouraging the right microorganisms to grow while suppressing the wrong ones. At first, it may smell unpleasant—sharp, sour, sometimes even a bit like something went wrong. That’s normal. The early stages are messy. The stable culture you want takes time to establish itself.
After about five to seven days—sometimes longer—you’ll see consistent bubbling, a predictable rise after feeding, and a smell that shifts from questionable to pleasantly tangy. That’s your starter coming to life.
Now, depending on where you live, this process can either be straightforward—or surprisingly stubborn.
If you’re in a place with a healthy microbial environment, things tend to work as described. But if you’re in a very clean, climate-controlled, or otherwise “unhelpful” environment—think modern high-rise apartments in places like Manhattan—you might need to give nature a small nudge.
Some bakers add a pinch of commercial yeast at the beginning. Others use a piece of apple or raisins to introduce additional wild yeast and bacteria. These are not acts of cheating; they are simply ways of tipping the balance in your favor when your surroundings are less cooperative.
Personally, I prefer to let the environment do the work—but I won’t pretend the environment always cooperates.
In the end, whether you buy a starter, inherit one, or build your own from scratch, the goal is the same: a stable, active culture that reliably raises your dough.
The difference is how much of yourself is baked into it from the beginning.
And once you’ve created your own, named it, and watched it rise and fall like a living thing on your counter, you’ll understand why so many bakers insist on doing it the hard way
Let’s make this practical. No vague “some flour, some water”—just numbers you can follow without thinking.
Example: A Simple Starter by Weight
Start with a clean jar and a kitchen scale.
Day 1
Mix:
- 50 grams flour
- 50 grams water
Stir until smooth. You’re aiming for a thick paste—not dry, not runny. Cover loosely and leave it at room temperature.
That’s it for the first day.
Day 2
You may or may not see bubbles. Either is fine.
Add:
- 50 grams flour
- 50 grams water
Stir again. No discard yet. Let it sit.
Day 3
Now things usually get interesting. You might see bubbles, and the smell may be… questionable. Don’t panic.
From this point forward, you start the routine:
- Discard about half of the mixture
- Add:
- 50 grams flour
- 50 grams water
Stir and let it sit.
Day 4–6
Repeat the same process every 24 hours:
- Discard half
- Feed 50 g flour + 50 g water
You should start seeing more predictable activity—bubbles, some rise, and a smell that shifts from unpleasant to mildly sour.
Day 7 (give or take)
At this stage, your starter should:
- Double in size within a few hours after feeding
- Show consistent bubbles throughout
- Smell pleasantly tangy, not harsh
That’s your signal that it’s ready.
A Slight Adjustment (Once It’s Active)
Once your starter is stable, you don’t need to keep feeding large amounts.
A more efficient maintenance example:
- 25 g starter (kept after discard)
- 50 g flour
- 50 g water
This keeps the culture strong without wasting flour.
If Things Feel Slow
If after a few days nothing seems to happen:
- Move it to a slightly warmer spot
- Switch to whole wheat or rye flour for a couple of feedings
- Or (if your environment is truly uncooperative), add a tiny pinch of yeast or a few raisins to jump-start activity
The Quiet Reality
There is no magic ratio beyond consistency.
50/50 flour and water works because it’s simple, repeatable, and forgiving.
Everything else—the flavor, the strength, the personality of the starter—comes later.
And once it starts doubling reliably, you’ve crossed the line from “mixing paste in a jar” to maintaining something that will outlive most of your kitchen experiments—assuming you remember to feed it.
How I Created Mine
There are many ways to approach a sourdough starter. This is mine—and it reflects where I live.
I’m on a farm in southern Vermont. Open land, fresh air, real seasons. In other words: no shortage of whatever invisible life sourdough depends on.
I followed the general method described above, but I made one small adjustment at the very beginning.
Instead of using water straight from the tap, I filled a jar with water from our well and placed it outside for a day or two. This was in spring—arguably the best possible moment, when everything in nature is waking up and floating through the air whether you notice it or not.
The idea was simple: let the water sit exposed long enough to catch whatever wild yeast and bacteria were already present in the environment. Not in a scientific, measured way—just letting nature do what it does.
After that, I brought the jar back inside and filtered the water through a standard coffee filter. That step had nothing to do with microbiology and everything to do with common sense. When you leave a jar of water outside on a farm, you don’t just collect yeast—you also collect dust, pollen, the occasional curious insect, and whatever else happened to pass by. The filter takes care of that.
From there, I used that water to mix my first flour and began the normal feeding process.
And here’s the part that tends to raise eyebrows: I used my starter after just three days.
Was it fully mature by textbook standards? Probably not. But it was active. It showed bubbles, it rose, and it behaved like something alive rather than a stagnant paste. More importantly, it worked.
Since then, it has continued to develop. The aroma has deepened, the activity has become more predictable, and the overall character has grown stronger with time.
That’s something worth understanding: a starter is not a finished product. It evolves. What you create in the first few days is just the beginning. Given regular feeding and use, it becomes more stable, more expressive, and—if you pay attention—more interesting.
Would this exact approach work the same way in a sealed apartment in the middle of a city? Maybe. Maybe not.
But on a farm, with open air and a bit of patience, it felt less like creating something—and more like capturing something that was already there.
And since I live next to a lily pond, I named my starter “Lily.”
Sourdough Starter Maintenance
Yes, a starter needs maintenance. That part is not optional.
There are, of course, countless methods explaining how to care for a sourdough starter—daily feedings, strict schedules, ratios that read like lab instructions. If you follow enough of them, you might come away with the impression that your starter requires more attention than a pet.
I take a different view.
Feeding a starter every single day, indefinitely, makes no sense unless you bake every single day. For a home baker, that approach is not discipline—it’s unnecessary work disguised as expertise.
I bake about once a week. That alone determines everything about how I maintain my starter.
Most of the time, it lives in the refrigerator. Not on the counter, not demanding attention—just waiting. Cold storage slows everything down. Activity drops, fermentation nearly pauses, and the starter becomes stable without constant feeding.
When it’s time to bake, I take it out and let it come back to life.
There is no ritual, no complexity, no wasted flour. It doesn’t require discarding half the jar or performing precise calculations. It takes time more than anything else—a simple feeding, a bit of patience, and the starter returns to full strength on its own.
That’s really the underlying principle: a starter is far more resilient than most instructions suggest. It doesn’t need to be managed aggressively. It needs to be understood.
And perhaps most importantly, it needs to fit your schedule—not the other way around.
I won’t go into the step-by-step process here. That belongs in its own place.
If you want the details, see my separate post on maintaining a sourdough starter.
Take your sourdough baking beyond the basics with Hannah Dela Cruz’s inventive and highly practical collection of recipes. From rustic loaves and soft sandwich breads to flatbreads, crackers, pasta, breakfast staples, and desserts, this book shows how to make the most of both your active starter and your discard.
A self-taught baker, Hannah has a way of making sourdough approachable without oversimplifying it. She walks you through the entire process—from creating and maintaining a starter to baking your first successful loaf—then gradually expands into a wide range of recipes that build confidence and skill without feeling overwhelming.
Her recipes strike a balance between classic and creative. You’ll find familiar breads like a Whole Wheat Country Loaf alongside more adventurous options such as Mexican Hot Chocolate Rye or Semolina Chili-Cheddar Loaf. There’s also a strong focus on breads that fit into everyday life—Honey Butter Rolls for sandwiches, or enriched and filled breads like Sweet Potato–Cardamom Buns, Garlic Butter Couronne, and Cherry-Chocolate Babka.
Where the book truly stands out is in its approach to discard. Instead of treating it as a byproduct, Hannah turns it into an opportunity. Her discard recipes cover everything from breakfast and snacks to pasta, dumplings, cakes, cookies, and desserts—each one making practical use of what would otherwise be thrown away, while adding that subtle sourdough depth of flavor.
Whether you’re just starting out or already comfortable with sourdough, this is the kind of book that keeps you baking—not because you have to, but because you’ll want to try what’s next. More information…
