Sourdough Starter: Buy One or Make Your Own?

One of the first decisions you'll face when getting into sourdough is whether to buy an established culture or grow your own. Both are valid paths. This guide gives you an honest comparison so you can choose based on your situation — not baking mythology.

Growing Your Own

Growing a starter means mixing flour and water and waiting for the wild yeast and bacteria present in the flour and environment to colonise and establish. It takes 7–14 days of daily feeding.

The appeal

• It's free — just flour and water
• There's a satisfaction in building something entirely from nothing
• The resulting starter will reflect your local environment and flour

The reality

• It frequently fails: The first week of a new starter involves competing microorganisms. Early activity (lots of bubbles in the first 2–3 days) is often caused by leuconostoc bacteria, which die off around day 3–4. The starter then appears to "die" — it goes flat and quiet. Many beginners discard it at this point, not realising this is normal. The starter needs to be maintained through this transition period until the desired yeast and lactobacilli take over.
• It requires good conditions: Consistent warm temperature, quality flour (ideally whole rye for the first week), and filtered or rested water. Missed feeds, cool kitchens, or tap water high in chlorine can delay or derail the process.
• You can't be sure what you have: A home-grown starter may not be reliably active for many weeks. You may bake several loaves of dense bread before realising the starter isn't ready.

If this is the path you want, our day-by-day guide to making a starter from scratch walks through all 14 days, including the slump that catches most people out.

Buying an Established Starter

An established starter arrives as a living, proven culture that's been maintained, fed, and tested for baking performance.

The advantages

• Reliable from day one: The culture is already balanced and proven. You feed it once or twice after arrival and it's ready to bake with.
• Known performance: You know what you're getting — an active culture that has risen predictably for other bakers.
• Heritage: Our rye starter carries Polish heritage going back decades. Our wheat starter was developed in Sydney. These aren't anonymous cultures — they have character.
• Comes with support: Every starter we sell includes full feeding instructions, a free replacement guarantee, and direct access to us for troubleshooting.

The trade-offs

• There's a cost
• Some bakers prefer the process of growing their own

Who Should Grow Their Own?

Growing your own makes sense if you enjoy the process as much as the outcome, if you have time and patience to work through the early inconsistency, and if you're using high-quality whole grain flour. It's also a good project if you enjoy the microbiology of it — understanding what's happening at each stage makes the process more interesting.

Who Should Buy an Established Starter?

Buying an established starter makes more sense if your priority is baking good bread sooner, if you've tried growing one before and struggled, if you want a specific heritage culture, or if you're buying a starter as a gift. It also makes sense if you want the reassurance of a replacement guarantee.

The Bottom Line

Growing your own is free and educational. Buying an established culture is faster and more reliable. Neither is better in absolute terms — it depends on what you want from the process.

Ready to grow one? Follow our 14-day guide. Ready to skip to the baking? Browse our sourdough starter kits. Either way, our starter feeding guide covers everything you need to know once you have one.