Organic Sourdough Starter - 30 Year Mature Culture
Our sourdough starter is taken directly from an organic mother culture that has been maintained and fed for over 30 years. Fully established and reliably active, it's ready to become the heart of your baking. Choose Live (wet and ready to bake) or Dehydrated (shelf-stable, ideal for posting or keeping as a backup) - both come from the same 30-year organic culture.
Live or Dehydrated?
Live Culture - arrives wet, active and fermenting. Give it a feed and a short adjustment period and it's ready to leaven bread reliably. The fastest way to start baking with an established starter.
Dehydrated Culture - the same organic culture, carefully dried for long storage and easy posting. Rehydrate and feed to bring it fully back to life. Shelf-stable and a perfect backup or gift.
Why this starter
• Organic 30-year mature culture
• Choice of Live (ready to use) or Dehydrated (shelf-stable)
• Fully established and regularly maintained
• Balanced acidity and strong, reliable fermentation
• Suitable for bread, pizza, focaccia and enriched doughs
• Beginner-friendly with full instructions included
• Dispatched quickly from the UK
Please note (Live Culture)
Your live starter is an active culture. During transit it may continue to ferment and can occasionally escape its pot into the sealed bag. Don't worry, this is completely normal and doesn't affect quality. Simply scrape it back into a clean container; you only need a small amount of healthy starter, and once fed it will quickly become active and ready to use. Live cultures can be a little enthusiastic on their journey!
Details
Type: Organic sourdough starter culture (Live or Dehydrated)
Starter Age: 30 years (original culture)
Hydration: 100% hydration (live)
Storage: Refrigerate live starter on arrival if not feeding immediately; store dehydrated in a cool, dry place
Use: Feed before baking (rehydrate first if dehydrated)
Full step-by-step activation and feeding instructions are included with every starter.
Order by 4pm Monday to Friday and your order is dispatched the same day.
- Free UK delivery on orders over £50.
- Standard UK delivery: 1-2 working days.
- You will receive tracking by email as soon as your order is dispatched.
30-day returns. You have 30 days from receiving your item to request a return. Items must be unused, with tags, and in the original packaging.
- Approved refunds are issued to your original payment method within 10 business days.
- Starter cultures, perishable goods, custom items, gift cards and sale items cannot be returned.
- To start a return, email support@sourdoughsupply.co.uk. Returns sent without approval cannot be accepted.
Pairs well with
Frequently Asked Questions
Where can I buy a sourdough starter in the UK?
You can buy a live or dried sourdough starter right here from Sourdough Supply Co., a UK-based bakery supplier. We dispatch quickly from the UK so your starter arrives fresh and ready to bake. Browse all options on our Sourdough Starters collection.
Is it better to buy a live or dried sourdough starter?
A live starter is active and ready to bake straight away, ideal if you want to get going quickly. A dried starter stores longer and is easy to revive with a few feeds. Both come from the same 30-year mature culture, so it comes down to whether you want immediate baking or longer shelf life.
How is the starter delivered?
Your starter is sealed securely and posted within the UK by tracked Royal Mail. A live culture can stay active in transit, so it may look a little bubbly on arrival, which is completely normal.
What do I do when my starter arrives?
Scrape the starter into a clean jar, give it a feed of flour and water, and leave it somewhere warm. Within a day or two it will be bubbling and ready to bake. Full feeding instructions are included with every order.
How old is the culture?
Every starter is taken directly from our mature mother culture that has been fed and maintained continuously for over 30 years, giving it a robust, well-developed flavour.
Can beginners use this starter?
Yes. This starter is beginner-friendly, established and easy to maintain with simple regular feeds. New to sourdough? Add the jar, banneton and tools with our Build Your Own Sourdough Starter Kit.
Tools chosen by bakers, for bakers
At Sourdough Supply Co. we test every product in our own kitchens before it earns a place in the range. From proofing baskets to precision scoring tools, each piece is selected for durability, function and performance, because great bread starts with the right equipment.
Fast, careful UK shipping
Order by 4pm Monday to Friday and your order leaves our UK warehouse the same day. Standard delivery arrives in 1-2 working days, free on orders over £50. You will receive tracking by email the moment your order ships.
From our kitchen to yours
Sourdough Supply Co. is a small UK team of home bakers. Everything we stock is tested in our own kitchens, and if a tool does not earn its place, we do not sell it.
Questions about your bake? Email us and a real person will reply.
I bought this as this is my 1st time trying to make sourdough bread the instructions were clear and very useful it works and is easy to keep going to I am on loaf number 3 now
Absolutely fantastic, after attempting to make sourdough a few years ago I felt a little disheartened but decided to give it another go, bought the mature starter and after only a couple of days it was ready to bake with ! Excellent results from my first bake , one very happy customer.
Starter is excellent you could say it’s proving itself!
Hi Linda, thanks for sharing; we love to see the results!! The bread looks delicious.
Happy baking
Stacey @ Sourdough Supply
Brilliant stuff made a couple of loaves so far,well received. It's feeding well,christened her Phyllis.
Its great, beat my attempt hands down 😀
Fantastic service, super-fast delivery, and perfectly packaged. The bread I’ve made from this starter has an amazing flavour. I’d absolutely recommend this company.
Hi Sheree
Thank you for taking the time to leave us this review! I'm glad I have left a positive impression on you and it's great to hear that you love the bread (although you did the hard work here!)
Stacey
Love it
Bought this as a present for my Dad who bakes his own bread. He is delighted with it and has been dutifully feeding it and is going to make bread this week!
Amazing quality , great starter read advice/ instructions & worked fab doubled in size would buy again & recommend thanks
It arrived earlier than expected.
I fed it for 5 days and it grew everyday. Baked a good loaf on the 6th day.
Pleased with my purchase.
Hi Bill - she really is a lively one! So pleased you are happily baking using our wonderful starter. Thank you for the review Stacey @ Sourdough Supply
Great instructions and did what it said. The bread has been amazing!
It worked brilliantly. I’ve made 2 loaves with it already
We love to hear this! Thank you for taking the time to review
Thank you for the starter..it’s so bubbly and alive! I have started to enjoy making bread again after struggling with my sour miserable starter for too long!
This is amazing to hear, so pleased you have found your love for baking again. Thank you for your purchase :)
Hi there I love this item I purchased from you she is thriving nicely and making beautiful bread so thankyou very much and if I need to re stock I will definitely be back. I was a little concerned when she arrived as she had escaped her bottle but it was easy to rescue ☺️🫣😬
Hi Tansie - she certainly is very lively! So pleased to hear you are making some lovely bread with her. Thanks for the feedback :)