The fastest way to get a starter is from someone who already has one
A sourdough starter is a living culture of wild yeast and bacteria, and the easiest source is a friend, family member, or local baker who maintains one. Most people with active starters are happy to share a portion—it costs them almost nothing and takes two minutes. Ask at your local bakery, post in a neighborhood Facebook group, or check community gardening forums. You will get a starter that is already adapted to your local climate and water, which means it will perform better than one shipped across the country.
If you know no one locally, online communities like Reddit's r/Sourdough or the Sourdough Companion Facebook group often have members willing to mail a starter for the cost of postage. This is slower than picking one up in person, but still cheaper than buying one.
Key Takeaways
- Asking a local baker or friend is the fastest and cheapest option, and the starter will already be suited to your water and climate.
- Online communities and social media groups connect you with people who will mail a starter for postage costs only.
- Retail sourdough starters from grocery stores and baking supply shops arrive dried or in jars and need 5 to 7 days of feeding before they are ready to bake with.
- Mail-order starters from specialty bakers cost $15 to $40 and arrive active, but shipping time means they may arrive sluggish and need a day or two to recover.
- Dried starter packets are the cheapest retail option at $5 to $12, but require the most patience to revive.
Dried starter packets from grocery and baking stores
Most supermarkets and natural food stores stock dried sourdough starter in the baking aisle, usually under brand names like Cultures for Health, Sourdough International, or the store's own label. These packets cost $5 to $12 and contain dormant starter that you rehydrate and feed over 5 to 7 days before using. The advantage is that they ship easily, store for months in a cool cupboard, and cost less than any other retail option.
The trade-off is time. You will spend a week feeding the starter once or twice daily before it becomes active enough to leaven bread reliably. Follow the packet instructions exactly—they vary by brand—and expect the first loaves to rise more slowly than a mature starter would. By the second or third bake, the starter will be fully established.
Jarred starters from specialty baking suppliers
Stores that focus on baking supplies—both local shops and online retailers like King Arthur Baking Company, Breadtopia, and Cultures for Health—sell sourdough starter in jars, usually 4 to 8 ounces. These cost $15 to $30 and arrive already active, so you can bake with them within a day or two of opening the jar. The starter is usually fed and ready to use straight from the package.
Shipping time is the main consideration. A starter that travels for two or three days in a box will be sluggish when it arrives—the yeast and bacteria slow down in transit. Feed it once when you open the jar, let it sit at room temperature for 12 to 24 hours, and it will wake up. If you are in a hurry to bake, this is faster than a dried packet, but slower than getting one from a local source.
Mail-order starters from specialty bakers
Some small bakeries and sourdough specialists ship active starters directly to home bakers. These are often heirloom cultures with a story—a starter maintained for decades, or one brought from another country. Prices range from $20 to $40, and the starter arrives in a jar or container, ready to feed and use within a day or two.
The appeal is the culture itself: you are getting a starter with a known history and often detailed instructions for that specific strain. The downside is cost and shipping time. Overnight or two-day shipping is common to keep the starter alive in transit, which adds to the price. Search for "sourdough starter mail order" or look at the websites of well-known sourdough bakeries in your region—many offer this service.
What to look for when you receive a starter
When your starter arrives, open it and look for a layer of liquid (called hooch) on top, a sour smell, and visible bubbles or a slightly domed surface. All of these are normal signs of an active culture. If the starter smells like nail polish or acetone, that is also normal—it means the yeast and bacteria have been working. A pink or orange tint, fuzzy mold, or a smell like rotting fruit means something went wrong in shipping, and you should contact the seller.
Store the starter in the refrigerator as soon as you receive it if you are not ready to use it right away. It will keep for weeks between feedings when cold. Before you bake, take it out, feed it with equal parts starter, flour, and water by weight, and let it sit at room temperature for 4 to 8 hours until it is bubbly and has roughly doubled in volume.
Comparing cost and time for each source
| Source | Cost | Time to first bake | Best for |
|---|---|---|---|
| Friend or local baker | Free to $5 | 1 to 2 days | Speed and cost; starter adapted to your area |
| Online community (mailed) | $3 to $8 postage | 5 to 10 days | Low cost; connecting with other bakers |
| Dried packet | $5 to $12 | 5 to 7 days | Convenience; long shelf life before opening |
| Jarred starter (local or online) | $15 to $30 | 1 to 2 days | Active starter; faster than dried |
| Mail-order specialty starter | $20 to $40 | 2 to 3 days | Heirloom cultures; specific strains |
Frequently Asked Questions
Can I make my own starter instead of buying one?
Yes. Mix flour and water in a jar and feed it daily for 5 to 7 days, and wild yeast from the air and flour will colonize it. This is free but requires patience and daily attention. Most people find it easier to start with a purchased or gifted starter and skip the waiting period.
Will a starter shipped through the mail survive the trip?
Yes, if it is packed correctly. Starters are resilient and can survive several days without feeding. Reputable sellers use insulated packaging and sometimes include ice packs to keep the starter cool. If it arrives sluggish, feed it and let it rest at room temperature for 12 to 24 hours.
How do I know if a dried starter packet is still good?
Dried starter lasts for years if stored in a cool, dry place. Check the package date if one is printed, but even older packets will usually revive. If it does not show signs of life after 7 to 10 days of feeding, the packet was likely damaged or stored in heat or humidity.
Is a more expensive starter better than a cheap one?
Not necessarily. A $12 dried packet and a $40 specialty starter will both make good bread once established. The difference is usually in the story or the specific flavor profile of the culture. A local free starter will work just as well as any paid option.
What if I buy a starter but do not want to use it right away?
Store it in the refrigerator in a sealed jar. Feed it once every two weeks with equal parts starter, flour, and water. It will keep for months this way. Before you bake, remove it from the fridge, feed it, and let it come to room temperature and double in volume over 4 to 8 hours.