The fastest way to get sourdough starter
You can buy sourdough starter from a local bakery, order it online from specialty food retailers, or pick it up at some grocery stores and farmers markets. A bakery that makes sourdough bread is your quickest option — most will sell you a small container for $5 to $15, and you can use it the same day. Online retailers ship dried or fresh starter in the mail, which takes three to seven days but gives you access to regional varieties you cannot find locally.
The choice between fresh and dried starter matters for how soon you can bake. Fresh starter is ready to use when ready but needs refrigeration during shipping and costs more. Dried starter takes three to five days to rehydrate and become active, but it ships cheaper and lasts longer on the shelf if you do not use it right away.
Key Takeaways
- Local bakeries are the fastest and cheapest source, usually $5 to $15 for a container you can use the same day.
- Online retailers like King Arthur Baking Company and Cultures for Health ship fresh or dried starter nationwide, with dried versions costing less and lasting longer in storage.
- Farmers markets and some grocery stores carry starter from local producers, though availability varies by season and location.
- Dried starter requires three to five days of feeding before it is active enough to bake with, while fresh starter works when ready.
- You can also grow your own starter from flour and water in five to seven days, which costs almost nothing but requires daily attention.
Buying from local bakeries and farmers markets
A sourdough bakery is the most reliable place to find starter. Call ahead or visit in person and ask if they sell it. Most bakeries that bake sourdough daily have extra starter on hand and will give you a small amount in a jar or container. You pay on the spot, take it home, and can feed it and bake with it that evening or the next morning.
Farmers markets in bread-growing regions often have vendors selling starter, especially in spring and summer. Prices are similar to bakeries — usually $5 to $12 — and you can ask the seller directly how old the culture is and what flour they feed it with. This matters because some starters are optimized for whole wheat or rye, while others work better with all-purpose flour.
The downside is availability. Not every town has a sourdough bakery, and farmers market vendors do not always show up every week. If you live in a rural area or a place without strong bread culture, this route may not work.
Ordering online from specialty retailers
King Arthur Baking Company sells fresh sourdough starter in a glass jar for around $20, plus shipping. It arrives in two to three business days and is ready to use when it lands. They also sell a dried version for about $8, which you rehydrate by mixing with water and feeding for a few days.
Cultures for Health specializes in fermentation cultures and sells both fresh and dried sourdough starter. Their dried starter is cheaper than fresh and comes with detailed instructions for bringing it back to life. Shipping takes three to seven days depending on your location.
Etsy has hundreds of small producers selling dried starter. Prices range from $6 to $20, and many sellers include regional varieties — San Francisco, Alaskan, or European styles. Read the reviews carefully; some sellers are more reliable than others. Shipping is usually slower than commercial retailers, sometimes two weeks or more.
Online ordering costs more upfront because of shipping, but you get consistency. You know exactly what you are getting, and the starter arrives with instructions. If you want a specific regional style or a starter with a particular history, online is your only option.
Buying at grocery stores and specialty food shops
Some larger grocery chains and natural food stores stock sourdough starter in the baking aisle or refrigerated section. Whole Foods and similar stores are more likely to carry it than conventional supermarkets. Prices are higher than bakeries — usually $8 to $18 — because the store is marking up a product they did not make.
The advantage is convenience. If you already shop there, you can grab starter without a separate trip. The disadvantage is that the starter may have been sitting on the shelf for weeks, which means it could be sluggish or need extra feedings before it is strong enough to bake with.
Call ahead before you go. Many stores do not stock it regularly, and availability changes by season. In winter, fewer people bake sourdough, so stores may not reorder.
Growing your own starter from scratch
You can make sourdough starter at home with nothing but flour and water. Mix equal parts flour and water in a jar — start with one-quarter cup of each — and leave it on the counter. Feed it every 12 to 24 hours by discarding half and adding fresh flour and water. After five to seven days, it will be bubbly and smell sour, and you can bake with it.
This costs almost nothing and teaches you how the culture works. The downside is time and attention. You have to feed it daily, watch for mold, and wait a week before you can bake. If you forget to feed it or the kitchen is too cold, the process takes longer.
Growing your own makes sense if you have time and patience, or if you want to understand fermentation from the ground up. It does not make sense if you want to bake sourdough bread this week.
What to look for when you buy
Check the age of the starter if the seller will tell you. Older starters — ones that have been fed regularly for months or years — tend to be more stable and flavorful than brand-new ones. Ask what flour they feed it with. If they use whole wheat or rye, the starter will have a different flavor and rise speed than one fed with white flour.
For fresh starter, make sure it has been refrigerated during shipping. It should arrive in a sealed container with some liquid on top (called the "hooch") — that is normal and means it is alive. For dried starter, check the packaging date. Dried starter stays good for months, but fresher is better.
If you are buying in person, smell it. Sourdough starter should smell sour and yeasty, not like nail polish or acetone. A faint alcohol smell is fine — that is the hooch. A rotten or moldy smell means do not buy it.
Price comparison and what you actually pay
A local bakery starter costs $5 to $15 with no shipping. Online fresh starter costs $15 to $25 plus $5 to $15 shipping. Online dried starter costs $6 to $12 plus $3 to $8 shipping. Grocery store starter costs $8 to $18 with no shipping. Growing your own costs less than $1 in flour and water but takes a week of your time.
If you want to bake this week, a bakery is cheapest and fastest. If you want a specific regional variety or do not have a local bakery, online is worth the extra cost. If you have time and want to learn, growing your own is the most economical choice.
Frequently Asked Questions
Can I use dried starter right away or do I have to wait?
Dried starter needs to be rehydrated and fed for three to five days before it is active enough to bake with. Mix it with water and flour, feed it daily, and wait until it doubles in size within four to eight hours of feeding. Fresh starter is ready to use when ready or after one feeding.
What is the difference between San Francisco sourdough starter and other regional types?
Regional starters have different wild yeast and bacteria strains, which affects flavor and rise speed. San Francisco starter is tangy and slow-rising. Alaskan starter tends to be milder. European starters vary by country. The flour you feed it with matters more than the region once you own it — your starter will adapt to your kitchen and your flour over time.
Will sourdough starter die if it sits in the fridge for months?
No. Refrigerated starter can survive for months or even a year without feeding, though it will develop a dark liquid on top. When you want to use it again, feed it at room temperature for one or two days until it is bubbly and active. It may take longer to wake up than a regularly fed starter, but it will come back.
Is mail-order starter as good as starter from a local bakery?
Yes, if it arrives fresh and you follow the instructions. The main difference is that bakery starter is already adapted to your region and your baker's flour, while mail-order starter needs a few feedings to adjust to your kitchen. After a week or two, they perform the same way.
Can I buy starter and use it the same day?
Only if you buy fresh starter from a local bakery or a store. Mail-order fresh starter arrives the next day or two and may need one feeding before it is strong enough. Dried starter always needs three to five days. If you want to bake today, a bakery is your only option.