The fastest way to get a sourdough starter
You can buy a dried sourdough starter online and have it shipped to you within days, or pick up a fresh one from a local bakery, farmer's market, or friend. The cheapest option is to ask around — many people who keep starters have more than they need and will give you some for free. If you want to start from scratch instead, you can make your own in five to seven days using just flour and water, though this requires daily feeding and attention.
Each route has a real trade-off. Buying dried starter online costs $15 to $40 but arrives ready to use. A fresh starter from a bakery or friend works when ready but you need to find one nearby. Making your own costs almost nothing but demands consistency for a week before you can bake with it.
Key Takeaways
- Dried sourdough starters ship quickly and cost $15 to $40, and they work as soon as you rehydrate them with water and flour.
- Local bakeries, farmer's markets, and friends often give away fresh starters for free or sell them for $5 to $15.
- Making your own starter takes five to seven days and requires feeding it daily with flour and water until it becomes active.
- A fresh starter from a trusted source (bakery or friend) is usually more reliable than a dried one shipped from far away.
- Once you have a starter, you can keep it indefinitely in the refrigerator with weekly feedings, or leave it on the counter with daily care.
Buying dried starter online
Dried sourdough starter arrives as a powder or flakes in a small package. You mix it with water and flour, feed it for a few days, and it becomes active. Popular online sources include King Arthur Baking Company, Cultures for Health, and Sourdough International. Prices typically range from $15 to $40 depending on the brand and shipping.
The advantage is speed and reliability — you know what you're getting, and it ships anywhere. The disadvantage is that dried starters sometimes take longer to wake up than fresh ones, and you're paying for shipping. Read the reviews before you buy; some dried starters revive quickly, others take two weeks of feeding before they're strong enough to leaven bread.
Getting a fresh starter from a local bakery
Many sourdough bakeries keep extra starter on hand and will give you some or sell it cheaply — usually $5 to $15 for a jar. Call ahead or ask when you visit. Some bakeries give it away as a gesture; others charge a small amount. A fresh starter from a bakery is often the best option because it's already active and proven to work in that baker's hands.
The starter comes in a jar or container, usually with basic feeding instructions. You can use it the same day or the next day, depending on how active it is when you receive it. If the bakery's starter is kept at room temperature, ask how often they feed it so you know what rhythm to expect when you take it home.
Finding a starter at farmer's markets and community groups
Farmer's markets often have vendors or bakers selling fresh starters, and community gardening groups, neighborhood Facebook pages, and local cooking clubs frequently have people giving them away. Search "[your city] sourdough starter" on Facebook or Nextdoor, or ask at your farmer's market. Many home bakers have multiple jars and are happy to pass one along.
This route is free or very cheap, and you get to talk to someone who uses the starter regularly. Ask them how they feed it, how often, and what temperature they keep it at — that information makes the handoff much smoother. A starter that's been thriving in someone's kitchen for years is usually more vigorous than a commercial one.
Making your own starter from scratch
You need only flour and water. Mix equal parts (usually 50 grams each) in a clean jar, cover it loosely, and leave it at room temperature. Every day, discard half the mixture and feed it again with equal parts flour and water. By day three or four, you should see bubbles. By day five to seven, it should double in size within four to eight hours of feeding — that's when it's ready to bake with.
The cost is negligible, but the time commitment is real. You must feed it daily, and you need patience if it seems sluggish. Some starters take longer than others depending on your kitchen temperature and the flour you use. Whole wheat or rye flour can speed up the process. Once it's active, you can move to a weekly feeding schedule in the refrigerator.
What to look for in a starter, whether you buy or receive it
An active starter should smell pleasantly sour and yeasty, not like nail polish or acetone (though a little acetone smell is normal). It should bubble visibly and roughly double in size within four to twelve hours of feeding, depending on the temperature. If it's been refrigerated, it may take a day or two to wake up after you bring it home.
Ask the source how old the starter is and how often it's been fed. A starter that's been maintained consistently is more reliable than one that's been neglected and revived. If you're buying online, check whether the company ships it in a way that keeps it alive — some send it dehydrated, others send it fresh in a sealed container.
Storing and maintaining your starter once you have it
You can keep a starter on the counter and feed it daily, or in the refrigerator and feed it once a week. Room-temperature starters are more active and ready to bake with at any time, but they demand daily attention. Refrigerated starters are low-maintenance but need to come to room temperature and be fed before you use them.
Most home bakers refrigerate their starters and feed them once a week — usually the day before they plan to bake. If you go longer than two weeks without feeding, the starter may develop a dark liquid on top (called "hooch"), which you can stir back in or pour off. A neglected starter can usually be revived with a few days of regular feeding.
Frequently Asked Questions
Can I use a starter someone else has been using for years?
Yes. A well-maintained starter that's been passed around for decades is often stronger and more reliable than a new one. The microbes in it are established and stable. Just ask the person how they feed it and follow that routine for the first week or two until you understand its rhythm.
What's the difference between a dried starter and a fresh one?
Dried starters are shelf-stable and ship easily, but they take longer to become active — sometimes two weeks. Fresh starters work when ready or within a day. Both work fine for baking; fresh is faster, dried is more convenient to order online.
How long does it take to make a starter from flour and water?
Five to seven days is typical. You'll see bubbles by day three, but it usually needs until day five or six to reliably double in size within a few hours of feeding. Temperature matters — warmer kitchens speed it up, cold ones slow it down.
What if my starter smells bad or looks moldy?
A sour or yeasty smell is normal. Pink, orange, or fuzzy mold means discard it and start over. A dark liquid on top is harmless — stir it back in or pour it off. If you're unsure, ask the person who gave it to you or a sourdough community online.
Do I need special equipment to keep a starter?
No. A clean glass jar, a spoon, and flour and water are all you need. Some people use a scale to measure precisely, but you can eyeball it. A loose cover (cloth, coffee filter, or loose lid) lets gas escape while keeping dust out.