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Fermentation Weights

prices mostly outside the sweet spot ($4.66–$16.40) — Fermentation Weights doesn't clear our bar today.

Flapen Score

44
Skip it

Ranks 4,195 of 5,777 Home & Garden niches · −7 vs the category median of 51

Market size 14Growth 14Conversion 79Competition 25Returns 93Price range 12Avg price 32Brand share 54Review moat 91Quality gap 68
This niche Category average · 5,777 niches

Is Fermentation Weights profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, Fermentation Weights is a £57K/yr Amazon United Kingdom market (71K searches/yr). The top 5 brands hold 73% of demand. Verdict: Skip it — 44/100.

Fermentation Weights: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -22.4% over the last 90 days and 8.1% of searches end in a purchase.

£57K

revenue / yr

Units sold / yr6K
Search volume / yr-22.4%71K
Conversion rate8.1%
Avg price£9.83

Who owns the niche?

The top 5 brands hold 73% of demand, so 27% of the market is open.

27%

open market share

Brands · sellers14 · 19
Top-5 product click share70%
Open market27%
Avg brand age29 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.3★ — the gap to enter on.

0/100

page quality · 15 products

Sponsored placement93%
New entrants (1y)5· 0 succeeded
Avg rating4.3★
Avg reviews180

Top Fermentation Weights products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.

£0£6K£11K£17K£23K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

Brands

14 flat

Sellers

19

Top-5 brand share

73%

Top 20: 100%

Top-5 click share

70%

Top 20: 100%

Open market

23%

  • Country Trading Co.35%
  • Three Oaks14%
  • wandeli11%
  • volila9%
  • Okllen5%
  • Mistillion4%

Fermentation Weights demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume71KCVR8.1%Products15Brands14Top 5 Brands73%OOS Rate2.6%Rating4.3★Reviews180Avg BSR#412
2K2KSpike '25Spike '26Sep '25Nov '25Dec '25Feb '26Mar '26May '26

Top Fermentation Weights search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • fermentation weights47K/yr
  • fermenting weights9K/yr
  • glass weights for fermenting6K/yr
  • glass fermentation weights5K/yr
  • fermentation weight4K/yr

What reviews say buyers love and hate about Fermentation Weights

What buyers mention most, as a share of all reviews.

What buyers love

87% of reviews
Quality-Overall18%

Great for making sauerkraut

Advertised Vs Actual Product15%

Does the job

Value For Money14%

Excellent value

Size-Overall12%

These are the right size

Weight Heavy7%

Absolutely love these fermentation weights

What buyers complain about

86% of reviews
Size-Overall71%

The mesh is ways smaller

Advertised Vs Actual Product7%

the pictures are not showing that

Value For Money7%

they're a bit overpriced for a lump of glass

Fermentation Weights return rate & reasons

Why buyers send it back, as a share of all return requests.

1.1%

Return rate

85%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Size-Overall
79%
2Advertised Vs Actual Product
4%
3Weight Heavy
3%
4Quality-Overall
3%
5Defective Material/Parts
2%

Common Fermentation Weights questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Fermentation Weights 44/100 on Amazon United Kingdom — Skip it. The niche generates £57K/yr across 15 tracked products. 0 of 5 products launched in the last 360 days are still selling. Search demand moved -22.4% over the last 90 days.
Fermentation Weights buyers on Amazon United Kingdom complain most about Size-Overall, Advertised Vs Actual Product, Value For Money, the themes mined from the niche's reviews. Its return rate is 1.1%.