sourdough starter
Skip itSoft demand (-29.5% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Review moat
Great440.08avg incumbent reviews — the moat a new listing must climb
Conversion
Good6.1%search→purchase rate — share of searches ending in a sale
Price range
Good£5.17–£30.64cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay£10.53avg listing price — sweet spot $15–$100
Market size
Bad£90K£90K/yr · 139K searches
Competition
Bad77%top-5 click share — a locked-up shelf
Brand share
Bad92%top-5 brand share — brand-locked demand
Growth
Bad-29.5%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, sourdough starter is a £90K/yr Amazon United Kingdom market (139K searches/yr). The top 5 brands hold 92% of demand. Demand peaks in Jan–Feb–Dec. Verdict: Skip it — 44/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
sourdough starter market data
- Units sold / yr
- 8K–10K
- avg 250–500/product
- Revenue / yr
- £84K–£105K
- units × avg price
- Conversion rate
- 6.1%
- Avg BSR
- #859
- Page quality
- 0%
- Prime
- 69%
- Sponsored
- 69%
- Out of stock
- 8.7%
- Avg brand age
- 24 months
- Avg seller age
- 197 days
Competition & brand share
The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.Brands
8 rising
Sellers
8
Top-5 brand share
92%
Top 20: 100%
Top-5 click share
77%
Top 20: 100%
Open market
5%
- Dough Dough at home46%
- Kombuchaorganic26%
- Phoenix Fungi9%
- Good Gut Tribe8%
- Freshly Fermented3%
- Mad Millie3%
- Open — no brand owns it (2 brands, 5%)
Demand & seasonality
Weekly Amazon search volume, last 90 weeks — -29.5% search growth over the last 90 days.Peak months: Jan, Feb, Dec · busiest ÷ quietest = 2.4×
Top sourdough starter search terms
- sourdough starter123K/yr
- sour dough starter7K/yr
- sourdough starter culture6K/yr
- active sourdough starter3K/yr
Top sourdough starter products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 13 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Sourdough Starter Fast start Live Culture 46-Year Heritage Yeast -Shelf Stabilized Fail-Proof Instant Activation & No-Mess San Francisco Sourdough Starter Beginner Friendly
Dough Dough at home£10.024.1★177 rev
Certified Organic Live (NOT POWDER) Sourdough Starter Very Old and Mature - 46 year old Lake District Starter Bread Starter - 70g for all types of flour with printed instruction by Kombuchaorganic
Kombuchaorganic£9.824.4★2,234 rev
Organic White Sourdough Starter Live Culture for Artisan Bread Baking Mild & Creamy Flavour Easy to Use Reusable & Long-Lasting
Phoenix Fungi£9.993.9★33 rev
Freshly Fermented British White Sourdough Starter | Live Active Fresh Culture Certified Organic UKAS Lab Tested | Made in UK | Ready to Bake Starter for Classic White Loaves | 150g Pouch
Good Gut Tribe£12.603.8★16 rev
Dehydrated Sourdough Starter San Francisco Sourdough Culture for Artisan Bread 2 Hour Activation Easy Kit for Beginners 15 g Dried Sourdough Starter Packet
Dough Dough at home£10.024.1★592 rev
Newest
by launch dateSourdough Starter Fast start Live Culture 46-Year Heritage Yeast -Shelf Stabilized Fail-Proof Instant Activation & No-Mess San Francisco Sourdough Starter Beginner Friendly
Dough Dough at home£10.02177 rev
Dehydrated Sourdough Starter San Francisco Sourdough Culture for Artisan Bread 2 Hour Activation Easy Kit for Beginners 15 g Dried Sourdough Starter Packet
Dough Dough at home£10.02592 rev
All-in-One Mirafolk Sourdough Starter Kit Bread Making Kit with 10in Oval Proofing Basket Cloth Liner Jar Dough Whisk and Scraper Bread Making Tools Baking Accessories for Kitchen
MiraFolk£30.64111 rev
Dough Dough at Home: All-In-One Sourdough & Kefir Starter culture Dual Life 24-Hour Rapid Fermentation Makes Bread & Probiotic Milk All-Natural Active Live Cultures
Dough Dough at home£9.57177 rev
Organic White Sourdough Starter Live Culture for Artisan Bread Baking Mild & Creamy Flavour Easy to Use Reusable & Long-Lasting
Phoenix Fungi£9.9933 rev
Trending
90-day click momentumSourdough Starter Fast start Live Culture 46-Year Heritage Yeast -Shelf Stabilized Fail-Proof Instant Activation & No-Mess San Francisco Sourdough Starter Beginner Friendly
Dough Dough at home£10.024.1★
Phoenix Fungi Freeze-Dried Wholemeal Sourdough Starter Live Culture for Bread Baking Robust & Malty Flavour Easy to Activate Long Shelf Life & Reusable
Phoenix Fungi£8.203.9★
Breadtopia Sourdough Starter 12 Grams
Breadtopia£7.094.4★
Freshly Fermented Organic & Vegan Certified Freeze Dried Sourdough Culture Rye
Freshly Fermented£5.173.6★
All-in-One Mirafolk Sourdough Starter Kit Bread Making Kit with 10in Oval Proofing Basket Cloth Liner Jar Dough Whisk and Scraper Bread Making Tools Baking Accessories for Kitchen
MiraFolk£30.644.7★
What buyers say about sourdough starter
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to use”
“instructions were clear”
“have produced some excellent sourdough loaves”
“This product was perfect for my baking needs”
“Really good quality tools”
“is so worth the money”
“the taste was surprisingly complex”
“So far, it has been durable”
“the taste was surprisingly complex”
“Wonderful fresh bread smells all round the house”
What buyers complain about
“Didn't work for me”
“Instructions incompatible website vs packet”
“the result wasnt the nicely risen sourdough loaf I was hoping for”
“it turned out fine...but not very happy about how this listing misled me.”
“It's a total beast”
“it has stuck to the base of the loaf”
“I would not recommend this it was way to week to bake with so had to feed it quite a lot so l may as well made my own starter it also quite expensive my advice is to make your own or get some off a friend”
“Rubbish product dont buy”
“time to get this started off - dried format”
“so may not be enough for larger batches”
Top return reasons
Common questions
- Is sourdough starter profitable to sell on Amazon United Kingdom?
- The niche generates £90K/yr across 13 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -29.5%. Flapen's verdict: Skip it (44/100).
- How competitive is the sourdough starter niche?
- 8 brands and 8 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 92% of demand.
- What do buyers complain about in sourdough starter?
- Top complaints mined from reviews: Functionality-Overall, Instructions/User Manual/Troubleshooting, Sour. The return rate is 0.1%.
- When does demand for sourdough starter peak?
- Demand peaks in Jan–Feb–Dec; the busiest month runs 2.4× the quietest.
- What does it cost to enter the sourdough starter niche?
- Listings span £5.17–£30.64; the average listing price is £10.53 (sweet spot $15–$100). The average incumbent carries 440 reviews — the moat a new listing must climb.