Is burp lids profitable to sell on Amazon United States?

The niche generates $19K/yr across 26 tracked products. 2 of 9 products launched in the last 360 days are still selling. 90-day search growth is -21.0%. Flapen's verdict: Skip it (48/100).

How competitive is the burp lids niche?

20 brands and 34 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 66% of demand.

What do buyers complain about in burp lids?

Top complaints mined from reviews: Leak-Proof, Quality-Overall, Functionality-Overall. The return rate is 1.4%.

When does demand for burp lids peak?

Demand peaks in Aug–Sep–Oct; the busiest month runs 2.5× the quietest.

What does it cost to enter the burp lids niche?

Listings span $5.81–$63.10; the average listing price is $17.65 (sweet spot $15–$100). The average incumbent carries 998 reviews — the moat a new listing must climb.

burp lids

Skip it

A small market ($19K/yr) — this niche doesn't clear our bar today.

Returns

Great1.4%

return rate — above 5% kills the launch gate

Avg price

Great$17.65

avg listing price — sweet spot $15–$100

Price range

Great$5.81–$63.10

cheapest to priciest tracked listing — scored on the share inside $15–$100

Brand share

Good66%

top-5 brand share — brands hold most of the demand

Review moat

Good998.42

avg incumbent reviews — the moat a new listing must climb

Conversion

Good5.0%

search→purchase rate — share of searches ending in a sale

Competition

Good52%

top-5 click share — leaders hold, buyers still browse

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Bad-21.0%

90-day search growth — must beat 0% to launch

Market size

Bad$19K

$19K/yr · 22K searches

According to Flapen's Amazon United States niche tracking, burp lids is a $19K/yr Amazon United States market (22K searches/yr). The top 5 brands hold 66% of demand. Demand peaks in Aug–Sep–Oct. Verdict: Skip it — 48/100.

Data updated Aug 5, 2026 · scored weekly · How we score niches

burp lids market data

Units sold / yr: 1K–1K; avg 0–100/product
Revenue / yr: $18K–$22K; units × avg price
Conversion rate: 5.0%
Avg BSR: #190
Page quality: 0%
Prime: 100%
Sponsored: 85%
Out of stock: 5.0%
Avg brand age: 37 months
Avg seller age: 177 days

Competition & brand share

The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.

Brands

20 rising

Sellers

Top-5 brand share

66%

Top 20: 100%

Top-5 click share

52%

Top 20: 93%

Open market

29%

Masontops25%
Klemon13%
Miniguysa12%
OAKDOLCHE11%
Easy Fermenter5%
JILLMO5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -21.0% search growth over the last 90 days.

Peak months: Aug, Sep, Oct · busiest ÷ quietest = 2.5×

Open Trend

Top burp lids search terms

burping lids for mason jars10K/yr -20.0%6.8% conv.
burp lids for mason jars7K/yr -19.0%5.2% conv.
burp lids5K/yr -26.7%2.4% conv.

All search terms

Top burp lids 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.

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

Masontops Pickle Pipes - Airlock Fermentation Lids - Fermentation Kit for Small Mouth Mason Jar Sauerkraut & Pickle Kit Fermentation Jar not Included

Masontops$21.244.7★4,701 rev

OAKDOLCHE 4Pcs Silicone Fermentation Lids for Wide Mouth Mason Jars

OAKDOLCHE$5.814.3★134 rev

Masontops Pickle Pipes - Airlock Fermentation Lids - Fermentation Kit For Wide Mouth Mason Jar Sauerkraut & Pickle Kit - Fermentation Jar Not Included

Masontops$23.884.7★4,701 rev

Fermentation Lids 6 Set Fermentation Kit for Wide Mouth Jars 6 Stainless Steel Fermenting Lids with 6 Silicone Grommets 6 Airlocks 6 Silicone Rings(Jars Not Included)

Klemon$20.794.4★1,404 rev

Fermentation Lids Self-Burping Airlock Lids for Wide Mouth Mason Jars (86mm)|Heavy-Duty 100% Silicone One-Piece Seamless Hygienic Design|Upgrade Your Jar for Sauerkraut & Kimchi (5-Pack Rainbow)

Miniguysa$19.614.3★60 rev

Newest

by launch date

Ugotit Stainless Steel Mason Jar Fermentation Lids for Wide Mouth 4 Pack

Ugotit$20.999 rev

2mo ago

Fermentation Lids Self-Burping Airlock Lids for Wide Mouth Mason Jars (86mm)|Heavy-Duty 100% Silicone One-Piece Seamless Hygienic Design|Upgrade Your Jar for Sauerkraut & Kimchi (5-Pack Rainbow)

Miniguysa$19.6160 rev

4mo ago

Fermentation Lids Starter Set Self-Burping Airlock Lids for Mason Jars (3 Wide + 2 Regular)|100% Silicone Seamless Hygienic Design with Date Tracker|Ultimate Kit for Pickles & Kimchi

Miniguysa$19.6560 rev

4mo ago

Wide Mouth Mason Jar Fermentation Lids Silicone Fermenting Caps with Waterless Airlock Self-Burping Fermenter Tops for Pickles Kimchi and Probiotic Foods 3 Pack Grey (Jars Not Included)

WENQING$10.5412 rev

5mo ago

OAKDOLCHE 4Pcs Silicone Fermentation Lids for Wide Mouth Mason Jars

OAKDOLCHE$5.81134 rev

7mo ago

What buyers say about burp lids

What buyers praise and complain about, mined from review topics.

What buyers love

Ease Of Use14%

“More convenient”

Quality-Overall11%

“I believe these lids are great quality”

Size-Overall11%

“Fit great”

Advertised Vs Actual Product9%

“Met expectations”

Value For Money8%

“Reasonably priced”

Ease Of Cleaning7%

“cleans up easily”

Efficiency6%

“Work just as they should”

Leak-Proof4%

“I havent had any leaks”

Cooking Experience4%

“They are an outstanding addition to the pantry for anyone who loves crafting their own small-batch creations”

Color3%

“The colors are pretty bright”

What buyers complain about

Leak-Proof15%

“Leaks Every Time”

Quality-Overall8%

“feels cheap”

Functionality-Overall8%

“Completely fails at its basic function”

Size-Overall8%

“to small for Mason jars or regular glasses”

Ease Of Use7%

“ugly hard to use”

Ease Of Cleaning4%

“Flimsy & Hard to Clean”

Thickness4%

“These lids are too thick”

Value For Money3%

“I gulped at the price”

Rusts/Corrodes3%

“won't react with the ferment or rust the way metal lids can”

Instructions/User Manual/Troubleshooting2%

“No instructions”

Top return reasons

Size-Overall67%

Functionality-Overall9%

Advertised Vs Actual Product8%

Value For Money4%

Compatibility-Overall1%

Quality-Overall1%

Product Condition1%

Mechanism Issues1%

Material Quality1%

Thin1%

Common questions

Is burp lids profitable to sell on Amazon United States?: The niche generates $19K/yr across 26 tracked products. 2 of 9 products launched in the last 360 days are still selling. 90-day search growth is -21.0%. Flapen's verdict: Skip it (48/100).
How competitive is the burp lids niche?: 20 brands and 34 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 66% of demand.
What do buyers complain about in burp lids?: Top complaints mined from reviews: Leak-Proof, Quality-Overall, Functionality-Overall. The return rate is 1.4%.
When does demand for burp lids peak?: Demand peaks in Aug–Sep–Oct; the busiest month runs 2.5× the quietest.
What does it cost to enter the burp lids niche?: Listings span $5.81–$63.10; the average listing price is $17.65 (sweet spot $15–$100). The average incumbent carries 998 reviews — the moat a new listing must climb.