---
title: "Surströmming — £56K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/grocery/surstroemming"
last_updated: "2026-07-31T12:37:07.563Z"
locale: en
meta:
description: "Niche score 39/100 · £56K/yr market · 113K searches/yr · £30.05 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · £56K/yr market · 113K searches/yr · £30.05 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Surströmming — £56K/yr Amazon UK Niche (2026) - Flapen"
---
# **surströmming**
**Skip it**
A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Market size 14Growth 16Conversion 21Competition 0Returns 100Price range 95Avg price 95Brand share 0Review moat 92Quality gap 83
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****£30.05**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****£25.21–£33.08**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****167.5**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Bad****1.6%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-18.8%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****£56K**
£56K/yr · 113K searches
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United Kingdom niche tracking, surströmming is a £56K/yr Amazon United Kingdom market (113K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 39/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **surströmming market data**
- **Units sold / yr**
- **1K–2K**
- avg 100–250/product
- **Revenue / yr**
- **£38K–£45K**
- units × avg price
- **Conversion rate**
- **1.6%**
- **Avg BSR**
- **#112**
- **Page quality**
- **0%**
- **Prime**
- **0%**
- **Sponsored**
- **25%**
- **Out of stock**
- **2.9%**
- **Avg brand age**
- **58 months**
- **Avg seller age**
- **165 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▼falling
**Sellers**
**4**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- Soulgoods45% - Scandinavian Kitchen30% - AB Gösta H.F.18% - Best Natural by NJTrading7%
## **Demand**
Weekly Amazon search volume, last 35 weeks — -18.8% search growth over the last 90 days.
5K3KHoliday '25Spike '26Prime Day '26Nov '25Dec '25Feb '26Mar '26Apr '26May '26Jun '26
[**Open Trend **](https://flapen.com/research/uk/grocery/surstroemming/trend)
## **Top surströmming search terms**
- **surströmming**66K/yr-28.8%0.8% conv. - **surstromming**27K/yr+12.3%1.5% conv. - **surstromming fermented fish uk**9K/yr-35.0%3.7% conv. - **fermented fish**6K/yr-22.9%1.4% conv. - **surstromming fish**4K/yr-19.6%1.1% conv. [**All search terms **](https://flapen.com/research/uk/grocery/surstroemming/search-terms)
## **Top surströmming 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.
0%15%£8K30%£17K45%£25K60%£34K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 4 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Surströmming Röda Ulven Herring 300 g Tin (with fermented herring)**Soulgoods**£31.54**3.9★484 rev](https://www.amazon.co.uk/dp/B09ZJ59XLJ) [2**Scandikitchen Surstromming Fermented Herring by Roda Ulven - 400g**Scandinavian Kitchen**£30.37**4.0★14 rev](https://www.amazon.co.uk/dp/B0F6N6YR18) [3**Surströmming Fillet Röda Ulven 300 g Tin (with Fermented Fillet)**AB Gösta H.F.**£33.08**4.1★167 rev](https://www.amazon.co.uk/dp/B09ZVJ4BM3) [4**Surströmming Fillets - Fermented Herring Fillets in Traditional Tin**Best Natural by NJTrading**£25.21**4.7★5 rev](https://www.amazon.co.uk/dp/B0CG3P4TP7)
### **Newest**
by launch date
[**Surströmming Fillets - Fermented Herring Fillets in Traditional Tin**Best Natural by NJTrading**£25.21**5 rev1y ago](https://www.amazon.co.uk/dp/B0CG3P4TP7) [**Scandikitchen Surstromming Fermented Herring by Roda Ulven - 400g**Scandinavian Kitchen**£30.37**14 rev3y ago](https://www.amazon.co.uk/dp/B0F6N6YR18) [**Surströmming Fillet Röda Ulven 300 g Tin (with Fermented Fillet)**AB Gösta H.F.**£33.08**167 rev4y ago](https://www.amazon.co.uk/dp/B09ZVJ4BM3) [**Surströmming Röda Ulven Herring 300 g Tin (with fermented herring)**Soulgoods**£31.54**484 rev4y ago](https://www.amazon.co.uk/dp/B09ZJ59XLJ)
### **Trending**
90-day click momentum
[**Surströmming Röda Ulven Herring 300 g Tin (with fermented herring)**Soulgoods**£31.54**3.9★**▲ 81%**](https://www.amazon.co.uk/dp/B09ZJ59XLJ) [**Scandikitchen Surstromming Fermented Herring by Roda Ulven - 400g**Scandinavian Kitchen**£30.37**4.0★**▲ 27%**](https://www.amazon.co.uk/dp/B0F6N6YR18) [**Surströmming Fillet Röda Ulven 300 g Tin (with Fermented Fillet)**AB Gösta H.F.**£33.08**4.1★**▼ 17%**](https://www.amazon.co.uk/dp/B09ZVJ4BM3) [**Surströmming Fillets - Fermented Herring Fillets in Traditional Tin**Best Natural by NJTrading**£25.21**4.7★**▼ 78%**](https://www.amazon.co.uk/dp/B0CG3P4TP7)
## **What buyers say about surströmming**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Baking**50%
*“perfect with a bit of crusty bread”*
**Taste-Overall**50%
*“quite delish”*
## **Common questions**
- **Is surströmming profitable to sell on Amazon United Kingdom?**
- The niche generates £56K/yr across 4 tracked products. 90-day search growth is -18.8%. Flapen's verdict: Skip it (39/100).
- **How competitive is the surströmming niche?**
- 4 brands and 4 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What does it cost to enter the surströmming niche?**
- Listings span £25.21–£33.08; the average listing price is £30.05 (sweet spot $15–$100). The average incumbent carries 168 reviews — the moat a new listing must climb.
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