---
title: "Grinder — £785K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/grinder"
last_updated: "2026-08-01T02:48:49.754Z"
locale: en
meta:
description: "Niche score 56/100 · £785K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 56/100 · £785K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Grinder — £785K/yr Amazon UK Niche (2026) - Flapen"
---
# **grinder**
**Worth a look**
Shows low returns (0.3%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 72Growth 20Conversion 55Competition 41Returns 98Price range 52Avg price 31Brand share 71Review moat 60Quality gap 60
**Returns**
**Incredible****0.3%**
return rate — above 5% kills the launch gate
**Market size**
**Good****£785K**
£785K/yr · 1.7M searches
**Brand share**
**Good****62%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****1,087.54**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****4.7%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****£2.29–£28.76**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Okay****61%**
top-5 click share — leaders hold, buyers still browse
**Avg price**
**Okay****£9.69**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-9.1%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, grinder is a £785K/yr Amazon United Kingdom market (1.7M searches/yr). The top 5 brands hold 62% of demand. Demand peaks in Dec. Verdict: Worth a look — 56/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **grinder market data**
- **Units sold / yr**
- **80K–100K**
- avg 2,000–2,500/product
- **Revenue / yr**
- **£775K–£969K**
- units × avg price
- **Conversion rate**
- **4.7%**
- **Avg BSR**
- **#38**
- **Page quality**
- **0%**
- **Prime**
- **96%**
- **Sponsored**
- **63%**
- **Out of stock**
- **16.5%**
- **Avg brand age**
- **40 months**
- **Avg seller age**
- **167 days**
## **Competition & brand share**
The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**21 **▼falling
**Sellers**
**61**
**Top-5 brand share**
**62%**
Top 20: 99%
**Top-5 click share**
**61%**
Top 20: 95%
**Open market**
**33%**
- PPpanda23% - Blazed16% - NCS3512% - Anpro6% - no15% - Spespo5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -9.1% search growth over the last 90 days.
60K40KHoliday '24Holiday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Dec · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/uk/home-garden/grinder/trend)
## **Top grinder search terms**
- **grinder**582K/yr-5.6%3.8% conv. - **grinder for weed**339K/yr-16.9%5.1% conv. - **grinders**256K/yr-7.0%0.2% conv. - **herb grinder**202K/yr-4.5%4.1% conv. - **weed grinder**125K/yr-17.0%3.9% conv. - **metal grinder**64K/yr-18.0%2.9% conv. - **grinders for cannabis**24K/yr-13.3%2.0% conv. - **herb grinder weed**20K/yr-10.3%4.9% conv. - **weed grinders for smoking weed**20K/yr+15.0%3.8% conv. - **small grinder**14K/yr-2.9%0.4% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/grinder/search-terms)
## **Top grinder 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%10%£79K20%£157K30%£236K40%£314K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Herb Grinders Grinder for Dry Herb Portable Zinc Alloy Metal Grinder Black 5x4cm/2x1.6inch**PPpanda**£5.28**4.5★7,354 rev](https://www.amazon.co.uk/dp/B076B1GNFM) [2**Blazed Large Aluminium Herb Grinder (Red)**Blazed**£8.65**4.6★697 rev](https://www.amazon.co.uk/dp/B0BGFWTTZ8) [3**NCS35 1x Premium 3 Part Plastic Salt Herb and Spice Grinder 60mm Magnetic Shark Teeth Assorted Colours Portable Herbal Dispoable & Reuseable Durable Pocket Sized Unisex Gift**NCS35**£2.72**4.3★299 rev](https://www.amazon.co.uk/dp/B0D7TP3N13) [4**Anpro Herb Grinder Premium Zinc Alloy Portable Herbal Grinders with Sifter and Magnetic Top for Dry Herb and Spices - 2.15 Inches**Anpro**£6.49**4.5★8,590 rev](https://www.amazon.co.uk/dp/B01KXC7V7Y) [5**Plastic Herb Grinder 3 Part Magnetic Shark Teeth Assorted Colours**no1**£2.29**4.2★1,798 rev](https://www.amazon.co.uk/dp/B08RXD1CDH)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**LegalEyes Herb Grinder Zinc Alloy 4 Piece 50mm Grinder Metal Crusher for Spice- Big Lezz Sassy**LegalEyes**£10.08**3 rev4mo ago](https://www.amazon.co.uk/dp/B0GSLDLZVK) [**Geebymol Herb Grinder 61mm(2.4 inch) Large Spice Grinder 4 Layers Portable Zinc Alloy Metal Grinders with Sifter Pollen Scraper and Cleaning Brush for Dry Herb and Spices**Geebymol**£7.43**20 rev10mo ago](https://www.amazon.co.uk/dp/B0FPQ4M7Q1) [**Grinder Herb Large 63mm 4 Piece Purple Grinder with 40 Sharp Shark Teeth Cool Fantasy Metal Grinders for Kitchen Spice & Herbal Tea Gift Set for Boyfriend & Girlfriend Man & Women(Tree of Life)**Astriva**£8.57**22 rev11mo ago](https://www.amazon.co.uk/dp/B0FMHRJBK8) [**Viberium Metal Grinder 1.8 Inch - Herb Grinder Grinders Crusher Accessories Gifts Cool Dry Herb Mill Big Large Premium Steel Novelty Ginder 4 Piece 4 Chamber XXL Geinder Red**Viberium**£13.49**96 rev1y ago](https://www.amazon.co.uk/dp/B0F79CN2D4) [**4-Piece Herb Grinder 1.9 Inch (48 mm) Metal Grinder Black**COAST ANGELS**£5.43**41 rev1y ago](https://www.amazon.co.uk/dp/B0FC6ZS8MY)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Viberium Metal Grinder 1.8 Inch - Herb Grinder Grinders Crusher Accessories Gifts Cool Dry Herb Mill Big Large Premium Steel Novelty Ginder 4 Piece 4 Chamber XXL Geinder Red**Viberium**£13.49**4.3★**▲ 307%**](https://www.amazon.co.uk/dp/B0F79CN2D4) [**Herb Grinder 4 Parts 50mm Zinc Alloy Grinders Kitchen Grinder Spice Crusher Chamber and Pollen Catcher Premium Grinders Magnetic Top (4 Part 50mm Multi)**CRAVIING**£4.43**4.3★**▲ 224%**](https://www.amazon.co.uk/dp/B09M1XCV2L) [**LegalEyes Herb Grinder Zinc Alloy 4 Piece 50mm Grinder Metal Crusher for Spice- Big Lezz Sassy**LegalEyes**£10.08**5.0★**▲ 102%**](https://www.amazon.co.uk/dp/B0GSLDLZVK) [**Grinder Herb Large 63mm 4 Piece Purple Grinder with 40 Sharp Shark Teeth Cool Fantasy Metal Grinders for Kitchen Spice & Herbal Tea Gift Set for Boyfriend & Girlfriend Man & Women(Tree of Life)**Astriva**£8.57**4.7★**▲ 100%**](https://www.amazon.co.uk/dp/B0FMHRJBK8) [**4-Piece Herb Grinder 1.9 Inch (48 mm) Metal Grinder Black**COAST ANGELS**£5.43**4.7★**▲ 69%**](https://www.amazon.co.uk/dp/B0FC6ZS8MY)
**~~View all trending →~~**
## **What buyers say about grinder**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**29%
*“Excellent quality”*
**Value For Money**15%
*“Excellent value for money”*
**Advertised Vs Actual Product**5%
*“As described”*
**Ease Of Use**5%
*“Easy to use”*
**Size-Overall**5%
*“Good size”*
**Design-Overall**4%
*“it makes a stylish”*
**Durability**3%
*“very durable and very easy to use”*
**Grip**3%
*“Its 63mm size offers a comfortable grip”*
**Material Quality**3%
*“Nice materials good grip”*
**Strength**3%
*“the magnets are strong”*
### **What buyers complain about **
**Size-Overall**16%
*“Not fit for purpose”*
**Jamming/Clogging**12%
*“ffs gets stuck n cant open it for a while all the time”*
**Durability**10%
*“it breaks after a month or two”*
**Quality-Overall**7%
*“feels cheap”*
**Value For Money**5%
*“Could be a couple of quid cheaper”*
**Strength**5%
*“Not tough”*
**Ease Of Use**4%
*“Wouldn't use”*
**Advertised Vs Actual Product**3%
*“Awful grinder, not the same as photo”*
**Design-Overall**3%
*“Stupid design”*
**Ease Of Cleaning**2%
*“It's also terrible to clean”*
### **Top return reasons **
**Size-Overall**35%
**Functionality-Overall**20%
**Quality-Overall**10%
**Defective Material/Parts**7%
**Adhesion/Stickiness**4%
**Ease Of Use**3%
**Color**2%
**Value For Money**2%
**Mechanism Issues**2%
**Advertised Vs Actual Product**2%
## **Common questions**
- **Is grinder profitable to sell on Amazon United Kingdom?**
- The niche generates £785K/yr across 24 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -9.1%. Flapen's verdict: Worth a look (56/100).
- **How competitive is the grinder niche?**
- 21 brands and 61 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 62% of demand.
- **What do buyers complain about in grinder?**
- Top complaints mined from reviews: Size-Overall, Jamming/Clogging, Durability. The return rate is 0.3%.
- **When does demand for grinder peak?**
- Demand peaks in Dec; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the grinder niche?**
- Listings span £2.29–£28.76; the average listing price is £9.69 (sweet spot $15–$100). The average incumbent carries 1,088 reviews — the moat a new listing must climb.
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