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How to Make a Sourdough Starter From Scratch in 7 Days
A sourdough starter is a stable culture of wild yeast and lactic acid bacteria living in a flour-and-water paste. You do not need to buy one, and you do not need pineapple juice, grapes, or any other trick. You need flour, water, and about a week.

What you need
- Whole wheat or rye flour for the first few days — the bran carries far more microbial life than white flour and gets things moving faster
- White bread flour thereafter
- Water — if yours is heavily chlorinated, leave it out overnight or use filtered
- A jar, loosely covered so gas can escape
Day by day

Day 1

Mix 50g whole wheat flour with 50g water. Stir to a thick paste. Cover loosely, leave somewhere warm (75–80°F is ideal).

Day 2

Probably nothing. Maybe a few bubbles. Do nothing, or stir it. Both fine.

Day 3 — the false rise

Many starters erupt with activity around now and smell sharp, cheesy, or like vomit. This is not yeast. It is a bloom of Leuconostoc bacteria, and it will die off as the culture acidifies. Nearly everyone who gives up quits here, or on day 4 when it goes quiet.

Begin discarding and feeding: keep 50g of starter, discard the rest, add 50g flour + 50g water.

Days 4–5 — the quiet spell

Activity often stops completely and the smell turns sour or acetone-like. This is normal and it is the culture sorting itself out. Keep feeding once every 24 hours. Switch to white bread flour, or a 50/50 mix.

Days 6–7 — real activity

You should see a genuine, predictable rise — doubling within 4–8 hours of feeding — and the smell turns pleasantly tangy and yoghurty. That rhythm, not the bubbles, is the sign you have a working starter.

How to know it’s actually ready

The reliable test is consistency: it should double predictably, within a similar window, after several consecutive feedings. A starter that doubles once and then sulks is not ready to raise a loaf.

The float test — a spoonful in water — is a reasonable quick check but produces false negatives with wetter starters. Trust the rise-and-timing pattern first.

Keeping it alive
- Baking weekly? Keep it on the counter, feed once a day.
- Baking occasionally? Keep it in the fridge and feed once a week. Take it out and give it two or three feedings before you bake.
- Dark liquid on top? That’s “hooch” — alcohol, meaning it’s hungry. Pour it off and feed. Not a problem.
Why bother discarding?

Because without it, the acid concentration climbs until it suppresses the very yeast you’re cultivating, and the volume becomes absurd. Discarding keeps the culture young and the jar manageable.

When your first loaf disappoints

A young starter often makes dense bread for the first several bakes even when it looks lively — the population is still stabilising. Give it two or three weeks before you judge it, and see the troubleshooting guide if problems persist.

Related
- No-knead bread — bake something good while you wait
- What you actually need to bake bread
July 28, 2026
No-Knead Bread: The Recipe That Makes Everything Else Make Sense
If you have never baked a loaf, or you have been failing at sourdough and need a win, start here. No-knead bread produces a genuinely excellent loaf — open crumb, crackling crust — with almost no technique.

The insight: time replaces kneading. Given enough hours, gluten organises itself without any work from you.

Ingredients
- 400g bread flour (about 3¼ cups — but please use a scale)
- 320g water, room temperature (80% hydration)
- 8g fine salt (about 1½ tsp)
- 1g instant yeast (about ¼ tsp)
Method
1. Mix (2 minutes). Combine everything in a large bowl and stir until no dry flour remains. It will be a shaggy, sticky mess. That is correct. Do not knead.
2. Rest (12–18 hours). Cover and leave at room temperature. It’s ready when roughly doubled and the surface is bubbled. Cooler kitchen, longer wait.
3. Shape (5 minutes). Scrape onto a floured counter. Fold the edges into the middle a few times to form a rough ball, then flip seam-side down and drag it toward you a few times to build surface tension.
4. Second rise (1–2 hours). Rest seam-side up in a floured tea towel in a bowl. Meanwhile preheat your pot and oven to 475°F for at least 30 minutes.
5. Bake. Tip onto parchment, score once about ½ inch deep, lower into the hot pot. Lid on 20 minutes; lid off 20–25 minutes until deep brown and 205–210°F inside.
6. Cool 2 hours. Non-negotiable — cutting early makes it gummy.
What to notice

This recipe teaches the three variables that govern all bread: hydration (why the dough is sticky and the crumb open), fermentation (why time substitutes for effort), and steam (why the lid goes on first). Everything else you bake is a variation.

Troubleshooting
- Spread flat? Over-fermented, or shaping built no tension. Reduce the rest by a few hours next time.
- Dense? Under-fermented — likely a cold kitchen. Give it longer, not more yeast.
- Gummy? You cut it early, or it needed longer in the oven.
Full diagnostics: why is my bread gummy, dense, or flat?
July 28, 2026
What You Actually Need to Bake Bread (And What You Don’t)
Bread is flour, water, salt, and time. People have made it for thousands of years without a single item sold in a kitchen shop. Almost everything marketed to home bakers is optional.

That said, a few things genuinely help. Here they are in the order they’re worth buying.

Buy first

1. A digital scale

The highest-impact purchase on this page, and usually the cheapest. Volume measurements for flour are wildly inconsistent — a cup can vary by 20% depending on how it’s scooped. That alone explains a great many failed loaves. Baking by weight makes results repeatable.

Buy this before anything else
Digital kitchen scale (1g resolution)
Any scale that reads to 1 gram and has a tare button will do. This single change fixes more baking problems than any other purchase.
Check price on Amazon →
Affiliate link — we may earn a commission at no cost to you.

2. An instant-read thermometer

Two uses: confirming your loaf is baked (205–210°F) and measuring dough temperature, which is the variable that actually controls fermentation speed.

Second purchase
Instant-read digital thermometer
Removes the guesswork from doneness and lets you ferment by temperature rather than by someone else's clock.
Check price on Amazon →
Affiliate link — we may earn a commission at no cost to you.

3. A heavy lidded pot

For steam. You may already own something that works — see our Dutch oven guide before spending.

Buy later, if at all
- Banneton (proofing basket). Makes a pretty spiral and wicks moisture from the surface. A bowl lined with a floured tea towel does the same job. Nice, not necessary.
- Lame (scoring blade). A razor on a stick. A sharp paring knife works; a plain razor blade works better and costs almost nothing.
- Bench scraper. Genuinely useful for handling wet dough and cleaning the counter. Cheap. Buy it when you get tired of dough on your hands.
- Dough whisk. Mixes shaggy dough slightly better than a spoon. Marginal.
Skip
- Bread machines, if your goal is artisan-style loaves. They make a specific kind of soft sandwich bread well and cannot produce an open crumb or a proper crust.
- Proofing boxes. Your oven with the light on, or the top of the fridge, is free.
- Sourdough starter kits. You can make a starter with flour and water in about a week. Paying for one buys time, not capability — see the 7-day guide.
- Specialty flours, at the beginning. Learn on supermarket bread flour first.
The one upgrade that isn’t equipment

Switching from all-purpose to bread flour costs about a dollar more per bag and adds real strength to your dough. If you are fighting slack, spreading loaves, change this before you buy anything.

Related
- Why is my sourdough gummy, dense, or flat?
- No-knead bread: start here
July 28, 2026
The Best Dutch Oven for Bread (You Don’t Need an Expensive One)
A Dutch oven is the single piece of equipment that most improves home bread, because it solves the one thing home ovens are bad at: steam.

It’s also where people waste the most money. Here’s what actually matters.

Why it works

Professional bread ovens inject steam. Steam keeps the crust soft during the first minutes of baking, letting the loaf expand fully before the crust sets — that’s oven spring. A home oven vents steam almost immediately.

A heavy lidded pot fixes this by trapping the dough’s own moisture. For the first 20 minutes the loaf effectively bakes inside a tiny steam oven; take the lid off and it browns. That’s the whole trick, and a cheap pot does it as well as an expensive one.

What actually matters

1. Size: 4.5–6 quarts

The most important spec. Too big and the dough spreads before it sets. Too small and it hits the sides. A 5-quart round pot fits a standard 900g loaf almost perfectly.

2. A knob rated to 500°F

The most common expensive mistake. Many enameled pots ship with a plastic or phenolic knob rated to 400–450°F, and bread wants 450–500°F. Metal knobs solve this. Some brands sell a replacement metal knob for a few dollars — worth checking before you buy a new pot.

3. Heavy, even material

Cast iron — bare or enameled — holds and radiates heat far better than thin stainless. The thermal mass is what gives a strong initial burst of heat.

4. A tight lid

If steam escapes, the point is lost. It doesn’t need a gasket, just decent contact.

What does not matter
- Brand prestige. The bread cannot tell.
- Colour and enamel finish. Cosmetic. A dark interior hides scorching better; that’s all.
- Oval vs round. Round suits boules, oval suits bâtards. Round is more versatile.
Our picks

Best value
Lodge 6-quart enameled cast iron Dutch oven
Hits every requirement that matters — heavy cast iron, tight lid, right capacity — at a fraction of the premium brands. The most bread per dollar you can buy. Confirm the knob's temperature rating and swap in a metal one if needed.
Check price on Amazon →
Affiliate link — we may earn a commission at no cost to you.

Cheapest thing that works
Bare cast iron combo cooker
A skillet plus a deep lid. The shallow half makes loading a wet dough far easier than lowering it into a deep pot, and there is no enamel or plastic knob to worry about at 500°F. Requires seasoning, not scrubbing.
Check price on Amazon →
Affiliate link — we may earn a commission at no cost to you.

If you bake constantly
Dedicated cast iron bread oven with shallow base
Purpose-built pans with a shallow base and domed lid make loading safer and score-friendly. Worth it only if you bake weekly — it is a luxury, not an upgrade in results.
Check price on Amazon →
Affiliate link — we may earn a commission at no cost to you.

Before you buy anything

If you own any heavy lidded oven-safe pot, use it first. A stock pot with a metal lid, a deep casserole, even a roasting pan with a metal bowl inverted over the loaf will produce most of the benefit. Bake a few loaves, confirm you enjoy this, then spend money.

How to use it
1. Preheat the empty pot with the oven at 475–500°F for at least 30 minutes. A cold pot gives up most of the advantage.
2. Load the dough on parchment — safer than trying to invert into a screaming-hot pot.
3. Lid on, 20 minutes.
4. Lid off, 20–25 minutes, until deeply browned and 205–210°F inside.
5. Cool on a rack at least two hours before cutting. See why cutting early makes bread gummy.
Related
- What you actually need to bake bread
- No-knead bread — the recipe this pot was made for
July 28, 2026
Why Is My Sourdough Gummy, Dense, or Flat? A Diagnostic Guide
Most sourdough advice treats “my loaf didn’t work” as one problem. It isn’t. A gummy loaf, a dense loaf, and a flat loaf fail for different reasons, and fixing the wrong variable is why bakers stay stuck for months.

Start by identifying which one you actually have.

Quick diagnosis
- Gummy — the crumb is sticky or pasty, and the knife drags. Usually a baking or cooling problem.
- Dense — fully cooked but tight and heavy, small even holes. Usually a fermentation problem.
- Flat — it spread outward instead of rising up. Usually a structure problem: shaping, gluten, or over-fermentation.
Gummy crumb

Gumminess is almost always moisture that never left the loaf.

You cut it too early

This is the single most common cause, and the easiest to fix. Bread is still cooking as it cools. Starch needs to set, and steam needs to escape. Cut a loaf at twenty minutes and you release that steam into the crumb, where it condenses and turns pasty.

Fix: wait at least two hours. For a large, high-hydration loaf, four is better. It is agony and it works.

It’s underbaked

Colour is a bad doneness signal — a loaf can look beautifully dark and still be wet inside. Internal temperature is the reliable one. Lean bread is done at roughly 205–210°F (96–99°C) in the centre.

Fix: check with an instant-read thermometer. If it’s under, put it back in — out of the pot, directly on the rack — for another ten minutes.

Under-fermented dough

If the starch hasn’t been broken down by a long enough bulk ferment, the crumb can read as dense and gummy at once. See the next section.

Dense crumb

Dense bread that is cooked through is a fermentation failure, and it nearly always traces back to the starter.

Your starter wasn’t ready

A starter that hasn’t peaked doesn’t have the population to raise a loaf. “I fed it this morning” isn’t the test. The test is behaviour: it should roughly double, dome on top, and smell tangy but not like acetone. Use it at or just before peak.

The float test — a spoonful dropped in water — is a rough proxy, not gospel, but a starter that sinks like a stone is telling you something.

Bulk fermentation was too short

Recipes give times, but time is not the variable — temperature is. A dough at 78°F might finish bulk in four hours. The same dough at 65°F might need eight. If you bake by the clock in a cold kitchen, you will consistently under-ferment.

Fix: judge by the dough, not the timer. You want roughly 30–50% volume increase, a domed and jiggly surface, and some bubbles. Find the warmest spot in your house, or accept a longer clock.

Too much whole grain, too little water

Whole wheat and rye absorb far more water than white flour and their bran cuts gluten strands. Swapping in 30% whole wheat without raising hydration reliably produces a brick.

Flat loaves

A loaf that spreads into a puddle has lost its structure. Three suspects:

Over-fermentation

The opposite failure from dense. Left too long, the gluten network degrades and can no longer hold gas — the dough goes slack, soupy, and sharply sour. It will not recover. Bake it as a flatbread and shorten your bulk next time.

Weak gluten development

High-hydration dough needs strength built through stretch-and-folds or coil folds during bulk. Skip them and there’s no network to trap gas.

Flour matters too: bread flour has more protein than all-purpose and produces a noticeably stronger dough. If you are fighting slack dough, that’s the cheapest fix on this page.

Shaping that didn’t create tension

Shaping isn’t a formality — it builds a taut skin that directs expansion upward. If your dough ball slumps immediately on the counter, it has no surface tension. Pre-shape, rest 20 minutes, then shape firmly.

The one variable most people should change first

If you only adjust one thing: measure your dough temperature and stop baking by the clock. Nearly every dense loaf and a good share of flat ones come from treating a recipe’s “4 hours” as a fact rather than a description of someone else’s kitchen.

Steam is the other half

Oven spring — the fast rise in the first ten minutes — depends on the crust staying soft long enough to expand. That requires steam. A home oven vents it away almost immediately, which is why a lidded pot works so well: it traps the dough’s own moisture. If your loaves are dense and pale with a thick crust, lack of steam is likely part of it. See our guide to choosing a Dutch oven for bread.

Related
July 28, 2026