Getting started
How to Start Selling Sourdough Starter: Cost per Jar
What a jar of starter really costs, how to price it, and the rules to check before your first sale.
On this page
What to remember
- One product first: a live jar, dried flakes, or a kit.
- Cost the whole batch, then divide by the jars.
- Your state and county decide whether you can sell it.
- Price so labor and your monthly costs are already paid.
The short version of how to start selling sourdough starter is this: nobody is buying flour and water. They are buying a culture that already works and a seller who answers questions after the sale. That makes your feeding schedule and your label part of the product, not an afterthought.
What can you sell besides a bare jar
A live jar is the simplest thing to hand over. Dried flakes weigh less, so you can carry more to a market and postage is lighter. A kit adds a feeding card you write yourself and a small bag of the flour you use, which lifts the price without adding much work.
Buyers ask the same three things before they pay. When was it last fed, what flour do you feed it, and how do they keep it alive at home. Answer those on the label and you cut most of the messages you would otherwise answer one at a time.
Five steps from your kitchen to your first paid jar
Work in this order. Each step protects the next one, and none of them take long.
Pick the product
Choose a live jar, dried flakes, or a kit with a feeding card. Start with one so your cost per unit stays clear.
Cost one batch
Add flour, jars, labels, your hours, and your monthly costs. Divide by the number of jars.
Check your state and county rules
Call your state agriculture department and your county health office. Ask if you can sell a live culture and what the label must say.
Set a price and a minimum order
Price from the cost per jar plus a margin. Set a minimum of two jars so a pickup trip is worth your time.
Take the first orders and get paid
Start with people who already buy from you. Offer one pickup window and accept card, Venmo, Cash App, Zelle, or cash.
What one batch of jars actually costs
Cost the whole batch and divide at the end. Keep every line on paper, including the ones that feel too small to count, because the small lines are what turn a $10 jar into a $4 jar.
For example, twelve 4 ounce jars. Flour and feed come to $5.00. Jars are $0.85 each, so $10.20. Labels are $1.80. That is $17.00 in ingredients and packaging. Two hours of your time at $15 an hour adds $30.00. The $20 monthly Brevl plan split across four batches adds $5.00. Total cost is $52.00, or $4.33 a jar.
Sell those twelve jars at $10 each and you take in $120. Take off the $52.00 and you keep $68.00, about 57 percent. The labor and the monthly cost are already inside the $52.00, so that $68.00 is money, not a hope.
Your own numbers will differ. Flour prices, jar prices, and the hourly rate you pay yourself are yours to set, and every one of them moves the cost per jar.
How do you price a jar so it pays you
Start at the cost per jar and multiply. Doubling $4.33 gives $8.66, so $9.00 covers a remake and a little waste. If you sell a three jar bundle, price it at $25.00 rather than $27.00 so the bundle is the easy yes.
Then test the price with real people. Ask two or three customers who already buy from you what they would pay for a jar with a feeding card. Their answer is worth more than a number you guessed at your kitchen table.
If the jars sell and you want to add bread later, read how to start a sourdough business before you buy a second fridge. Starter money and bakery money are two different plans.
What to check before you take a single dollar
Your state and county decide what you need. Licenses and permits come from state, county, and city offices, according to the Small Business Administration guide to starting a business. Call your state agriculture department and your county health office with two questions: can I sell a live culture from my home kitchen, and what must the label say.
Taxes come next. Money from selling starter is income you report. The IRS self employed tax center explains self employment tax and the records to keep, so set up a folder for sales and receipts from the first jar.
Some markets ask for paperwork before they give you a table. Ask the market manager what they need, and in what form, before you pay a stall fee. The permits, the kitchen rules, and the first sale are covered in how to start a home bakery.
Mistakes that cost you money
The costliest mistake is selling a jar you have not fed on schedule. A flat starter brings a refund, an apology, and a customer who does not come back. Feed the jars you list, and list only what is fed.
The second mistake is giving starter away free to friends and then charging strangers. Samples are fine, but pick your sizes and stick to them. A 2 ounce sample jar and a 4 ounce jar you sell are easy to explain and easy to cost.
How do you get the first orders and keep them
Start with people who already buy from you. Add a small card to every bread order that says starter is available and when the next pickup day is. One pickup window a week is easier than driving to five porches.
Set a minimum of two jars and a clear pickup window. Then take the order in one message: how many jars, which day, and how they will pay. Write the answer down so you are not rebuilding the same message every evening.
Keep a simple list of who bought and when. A message six weeks later asking how the starter is doing brings repeat orders and tells you which flour people like.
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Common questions
Do I need a license to sell sourdough starter?
Your state and county decide that, not a blog post. Call your state agriculture department and your county health office before you print labels. Ask whether a live fermented culture sold from a home kitchen is allowed where you live, and what a label must show.
How much should I charge for a jar of starter?
Start from the cost per jar, add your time and your monthly costs, then add a margin. A jar that costs $4 to make and sells for $9 leaves room for a remake and a small discount. Check the price with two or three real buyers before you print it.
Can I sell dried starter instead of a live jar?
Dried flakes weigh less and travel better to a market table. Ask your state whether dried starter is covered the same way as a live jar before you switch your whole product line. Then cost the bag and the label so the price still works.
Where should I sell my first jars?
Local first. People who already buy bread from you are the easiest first buyers, and one pickup day saves you delivery time. A farmers market stall or a church sale works too. Add shipping only once your state rules and the carrier are clear to you.
What goes on a starter label?
Your state decides what is required, so ask before you print. Add the date you last fed it, the flour you feed, and a phone number or email, because those are the questions buyers ask. A name for the starter helps people ask for it again.
Sources
General information, not legal or tax advice. Rules, permits, and taxes depend on your state and county, so confirm details with your own officials.