A Beginner's Guide to Baking Sourdough Bread at Home

There's a particular kind of magic in pulling a warm, cracked-crust loaf out of your own oven, knowing the whole thing rose on nothing but flour, water, salt and a jar of bubbling starter. Sourdough has a reputation for being finicky, but the process is more forgiving than it looks once you understand what's actually happening at each stage. This guide walks through the basics so you can bake a solid loaf on your first real attempt.

What Actually Makes Bread "Sourdough"?

Most bread you buy at the supermarket is leavened with commercial yeast — a single, cultivated strain that reliably produces carbon dioxide and puffs up dough in a couple of hours. Sourdough skips the packet of yeast entirely. Instead, the rise comes from a "starter": a living culture of wild yeast and bacteria that you feed and maintain yourself. That slower, wilder fermentation is also what gives sourdough its tang, its chew, and its noticeably longer shelf life compared to yeasted bread.

Understanding Your Starter

A starter is simply flour and water left to ferment until it's colonised by the yeast and bacteria naturally present in the flour (and floating around your kitchen). Once established, it's a self-sustaining culture — feed it regularly and it'll keep working indefinitely. Many bakers keep starters going for years, even decades.

You have two options for getting one: build your own from scratch, which takes roughly a week of daily feeding before it's reliable, or buy a small amount of dried or fresh starter from a bakery or online supplier and bring it to life in a couple of feedings. If you're baking your first loaf this weekend, buying one is the faster route to a confident bake.

Feeding and Maintaining Your Starter

A starter needs regular "feeds" — discarding most of it and replacing what's left with fresh, equal parts flour and water by weight — to stay active. If you bake often, feed it daily and keep it on the counter. If you bake occasionally, it's happy in the fridge for one to two weeks between feeds; just plan on feeding it twice, roughly twelve hours apart, before you bake to wake it back up.

You'll know it's ready to use when it roughly doubles in size within four to six hours of a feed and looks visibly bubbly and domed on top. A flat, sluggish starter that isn't doubling needs a few consecutive daily feeds to build strength again — don't be shy about discarding heavily; a smaller, well-fed portion outperforms a large, neglected one.

What You'll Actually Need

You don't need a fully kitted-out bakery to get started. At minimum:

• An active sourdough starter
• Bread flour (higher protein than all-purpose gives a better structure)
• Fine salt
• Water

A few extras make the process noticeably easier, though none are strictly required for your first loaf:

• A kitchen scale — sourdough is far more forgiving when measured by weight rather than cups
• A large bowl or straight-sided container, so you can actually see the dough rise
• A dough/bench scraper for handling sticky dough
• A proving basket (or any bowl lined with a clean tea towel)
• A sharp blade or knife for scoring
• A heavy, lidded pot such as a Dutch oven — this traps steam and is largely responsible for that crackly, bakery-style crust

The Five Stages of Sourdough

Every sourdough loaf, however the recipe is written, moves through the same five broad stages:

1. Mixing

Combine active starter, water and salt, then work in the flour until no dry patches remain and you have a shaggy, sticky dough. There's no need to knead heavily at this stage — a rough combination is enough.

2. Bulk Fermentation

This is the dough's first, longest rise, typically lasting anywhere from six to twelve hours at room temperature depending on how warm your kitchen is and how active your starter was. Rather than kneading in the traditional sense, most home bakers strengthen the dough during this window with a few rounds of "stretch and folds" — reaching under the dough, pulling it up, and folding it over itself every 30 minutes or so for the first couple of hours. Watch the dough rather than the clock: it's ready to move on once it looks noticeably puffier, feels lighter, and has a few visible bubbles at the surface.

3. Shaping

Turn the dough out onto a lightly floured surface and shape it into a taut round or oval by folding the edges toward the centre and rotating. Let it rest briefly, then shape it a second time for extra structure before placing it seam-side up in a floured proving basket or towel-lined bowl.

4. Cold Proving

Cover the shaped dough and refrigerate it — anywhere from a few hours up to about two days works, though somewhere in the 18-to-24-hour range tends to give the best balance of flavour and an open, airy crumb. This cold rest also means you don't have to bake at an awkward hour; the dough is happy to wait in the fridge until you're ready.

5. Scoring and Baking

Preheat your Dutch oven (or heavy lidded pot) inside the oven at a high temperature — around 250°C (480°F) — for at least 30 minutes. Turn the cold dough out onto parchment paper, slash the top with a blade so it has somewhere controlled to expand, then lower it into the hot pot. Bake covered for roughly 20 minutes, then remove the lid and continue baking at a slightly lower temperature until the crust is deeply golden. Let the loaf cool for a full hour before slicing — it's still cooking internally as it cools, and cutting too early makes for a gummy crumb.

Common Problems and How to Fix Them

• Dense, gummy crumb: usually means the bulk fermentation was cut short, or the loaf was sliced before it finished cooling
• Dough that won't hold its shape: often a sign of over-fermentation — the bulk rise went on too long and the gluten structure broke down
• Flat, sluggish rise overall: almost always points back to a weak or under-fed starter. Strengthen it with a few consecutive daily feeds before your next bake
• Overly sticky, hard-to-handle dough: try slightly less water next time, and make sure you're using bread flour rather than all-purpose.

A Simple Weekend Schedule

If you're not sure how to fit sourdough around a normal week, here's a straightforward rhythm to try:

• Thursday evening: feed your starter
• Friday morning: feed it again
• Friday afternoon: mix the dough and let it complete its bulk fermentation through the evening, then shape it and place it in the fridge overnight
• Saturday: bake straight from the fridge, any time that suits you.

Final Thoughts

Your first loaf doesn't need to be perfect — sourdough rewards repetition far more than precision. Pay attention to how your dough looks and feels at each stage, adjust gradually, and you'll find your own rhythm within a few bakes.