grinder
Launch itA $6.5M/yr market growing +0.9% this quarter with returns at 2.8% — clears our launch bar.
Market size
Incredible$6.5M$6.5M/yr · 8.0M searches
Brand share
Incredible33%top-5 brand share — no brand owns this niche
Avg price
Incredible$23.30avg listing price — sweet spot $15–$100
Competition
Great21%top-5 click share — an open shelf
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Returns
Good2.8%return rate — above 5% kills the launch gate
Price range
Good$4.71–$158.57cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Okay3.5%search→purchase rate — share of searches ending in a sale
Growth
Okay+0.9%90-day search growth — must beat 0% to launch
Review moat
Okay3,958.75avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, grinder is a $6.5M/yr Amazon United States market (8.0M searches/yr). The top 5 brands hold 33% of demand. Demand peaks in Dec. Verdict: Launch it — 68/100.
Data updated Aug 4, 2026 · scored weekly · How we score niches
grinder market data
- Units sold / yr
- 250K–300K
- avg 3,000–4,000/product
- Revenue / yr
- $5.8M–$7.0M
- units × avg price
- Conversion rate
- 3.5%
- Avg BSR
- #77
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 84%
- Out of stock
- 6.8%
- Avg brand age
- 40 months
- Avg seller age
- 158 days
Competition & brand share
Clicks spread well past the top 5 (21% combined) — an open shelf where new products get seen.Brands
59 rising
Sellers
320
Top-5 brand share
33%
Top 20: 72%
Top-5 click share
21%
Top 20: 52%
Open market
63%
- Generic14%
- KINGTOP5%
- Amazon Basics5%
- COOL KNIGHT5%
- Wakit Grinders4%
- KOZO4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +0.9% search growth over the last 90 days.Peak months: Dec · busiest ÷ quietest = 1.6×
Top grinder search terms
- grinder2.1M/yr
- spice grinder1.1M/yr
- grinders for cannabis677K/yr
- herb grinder885K/yr
- weed grinder968K/yr
- grinder for marijuana944K/yr
- weed grinders for marijuana259K/yr
- electric grinder175K/yr
- herb grinder for marijuana132K/yr
- tobacco grinder119K/yr
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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Amazon Basics Fast Electric Coffee Grinder for Home Use Easy to Use Coffee Bean and Spice Grinder with Heavy-Duty Stainless Steel Grind Blades
Amazon Basics$16.754.4★19,177 rev
Wakit Grinders Best Electric Grinder (KLR Black)
Wakit Grinders$48.354.6★1,953 rev
2.5 Spice Grinder Kitchen Tools
Lanxicat$10.854.2★62 rev
![COOL KNIGHT Herb Grinder [large capacity/fast/Electric ]-Spice Herb Coffee Grinder with Pollen Catcher/- 7.5 (Black)](https://m.media-amazon.com/images/I/41oEcyJ+QrL.jpg)
COOL KNIGHT Herb Grinder [large capacity/fast/Electric ]-Spice Herb Coffee Grinder with Pollen Catcher/- 7.5 (Black)
COOL KNIGHT$23.714.4★9,980 rev
BLACK+DECKER One-Touch Coffee & Spice Grinder with Stainless Steel Blades
BLACK+DECKER$24.014.6★19,197 rev
Newest
by launch date2.5 Spice Grinder Kitchen Tools
Lanxicat$10.8562 rev
2.5 Spice Grinder Kitchen Tools (Black)
Generic$11.8092 rev
KOZO Premium Black Box with Original Grinders Tray and UV Jar. Built-in Lock & Keys - Decorative Storage Box Set - Perfect for Your Accessories (Rustic)
KOZO$35.1174 rev
Cipora Manual Spice & Herb Mill for Kitchen 2.5 Zinc Herb Mill with Bottom Storage Chamber Magnetic Lid for Peppercorns Rosemary Dried Herbs & Seasonings (Black)
Cipora$12.03144 rev
2.5-Inch Zinc Alloy Spice Grinder Compact Portable Design with Storage Compartment Essential Kitchen Tool - red
Generic$9.83121 rev
Trending
90-day click momentum2.5-Inch Zinc Alloy Spice Grinder Compact Portable Design with Storage Compartment Essential Kitchen Tool - red
Generic$9.834.4★
2.5 Spice Grinder Kitchen Tools (Black)
Generic$11.804.4★
Manual pepper grinder metal grinder - four-layer adjustable grinder (2-inch abstract mushroom pattern)
Generic$12.034.5★
2.5-inch Grinder Heavy-Duty Aluminum Construction Smooth GrindingKitchen Essential (Black)
YHDZSWGZS$10.124.5★
KOZO Premium Black Box with Original Grinders Tray and UV Jar. Built-in Lock & Keys - Decorative Storage Box Set - Perfect for Your Accessories (Rustic)
KOZO$35.114.4★
What buyers say about grinder
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent Quality”
“Great Deal”
“easy to dump”
“Works efficiently”
“Better than advertised”
“No mess”
“Durable and easy”
“Love the size”
“Cute and sturdy”
“Beautiful Design”
What buyers complain about
“Broke within a week”
“don't fit”
“Cheap quality”
“Did not work”
“Big mess”
“Hard to twist”
“False advertisement”
“Too expensive also”
“Not strong enough”
“Will not hold a charge”
Top return reasons
Common questions
- Is grinder profitable to sell on Amazon United States?
- The niche generates $6.5M/yr across 97 tracked products. 21 of 33 products launched in the last 360 days are still selling. 90-day search growth is +0.9%. Flapen's verdict: Launch it (68/100).
- How competitive is the grinder niche?
- 59 brands and 320 sellers compete. The top 5 products take 21% of clicks and top 5 brands hold 33% of demand.
- What do buyers complain about in grinder?
- Top complaints mined from reviews: Durability, Size-Overall, Quality-Overall. The return rate is 2.8%.
- When does demand for grinder peak?
- Demand peaks in Dec; the busiest month runs 1.6× the quietest.
- What does it cost to enter the grinder niche?
- Listings span $4.71–$158.57; the average listing price is $23.30 (sweet spot $15–$100). The average incumbent carries 3,959 reviews — the moat a new listing must climb.