Is half gallon mason jar profitable to sell on Amazon United States?

The niche generates $915K/yr across 52 tracked products. 10 of 12 products launched in the last 360 days are still selling. 90-day search growth is +9.8%. Flapen's verdict: Launch it (66/100).

How competitive is the half gallon mason jar niche?

36 brands and 61 sellers compete. The top 5 products take 36% of clicks and top 5 brands hold 55% of demand.

What do buyers complain about in half gallon mason jar?

Top complaints mined from reviews: Durability, Leak-Proof, Size-Overall. The return rate is 1.8%.

When does demand for half gallon mason jar peak?

Demand peaks in Sep; the busiest month runs 1.7× the quietest.

What does it cost to enter the half gallon mason jar niche?

Listings span $9.69–$55.96; the average listing price is $21.80 (sweet spot $15–$100). The average incumbent carries 2,613 reviews — the moat a new listing must climb.

half gallon mason jar

Launch it

A $915K/yr market growing +9.8% this quarter with returns at 1.8% — clears our launch bar.

Avg price

Great$21.80

avg listing price — sweet spot $15–$100

Price range

Great$9.69–$55.96

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

Brand share

Great55%

top-5 brand share — no brand owns this niche

Competition

Great36%

top-5 click share — an open shelf

Returns

Great1.8%

return rate — above 5% kills the launch gate

Conversion

Great7.5%

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

Market size

Great$915K

$915K/yr · 560K searches

Review moat

Okay2,613.19

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+9.8%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, half gallon mason jar is a $915K/yr Amazon United States market (560K searches/yr). The top 5 brands hold 55% of demand. Demand peaks in Sep. Verdict: Launch it — 66/100.

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

half gallon mason jar market data

Units sold / yr: 40K–50K; avg 500–750/product
Revenue / yr: $872K–$1.1M; units × avg price
Conversion rate: 7.5%
Avg BSR: #201
Page quality: 0%
Prime: 92%
Sponsored: 94%
Out of stock: 4.0%
Avg brand age: 37 months
Avg seller age: 156 days

Competition & brand share

Clicks spread well past the top 5 (36% combined) — an open shelf where new products get seen.

Brands

36 rising

Sellers

Top-5 brand share

55%

Top 20: 89%

Top-5 click share

36%

Top 20: 74%

Open market

42%

Ball32%
Galssmagic8%
Spreccio6%
Paksh Novelty5%
ODDMUCK4%
NIJIALGEXPY4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +9.8% search growth over the last 90 days.

Peak months: Sep · busiest ÷ quietest = 1.7×

Open Trend

Top half gallon mason jar search terms

64 oz mason jar106K/yr +36.6%6.6% conv.
half gallon mason jar105K/yr +6.9%6.6% conv.
1/2 gallon mason jar54K/yr +20.8%6.0% conv.
64 oz mason jars wide mouth35K/yr -5.2%6.7% conv.
half gallon mason jars wide mouth22K/yr +19.7%7.0% conv.
mason jars 64 oz21K/yr +8.9%6.3% conv.
half gallon mason jars18K/yr +23.1%4.5% conv.
1/2 gallon glass jar with lid32K/yr -39.9%2.9% conv.
64oz mason jars wide mouth19K/yr +14.4%5.7% conv.
half gallon glass jar with lid26K/yr -29.8%3.7% conv.

All search terms

Top half gallon mason jar 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

Galssmagic 64 oz Mason Jar Wide Mouth 3 Pack Large Half Gallon Mason Jars with Airtight Lid Big Glass Jars for Canning Pickling Fermenting Storing

Galssmagic$24.864.6★754 rev

Ball - 64oz Wide Mouth Mason Jars with Lids & Bands 2-Pack Half Gallon Mason Jars Clear Glass for Kitchen Storage & Canning for Herbs Jelly Jams and Spices

Ball$20.024.8★422 rev

Ball - 64oz Wide Mouth Jars with Lids & Bands 6 Pack Jars | Half Gallon Large Glass Mason Jar for Food Storage with airtight Lid 0.5 Gallon Glass Jar with Lid and Bands Set of 6

Ball$35.344.7★818 rev

Spreccio Mason Jar Pitcher 64 oz (2 quart) Glass Pitcher with Lid

Spreccio$22.144.7★2,684 rev

Ball 64 ounce Jar Wide Mouth Set of 2

Ball$20.214.8★5,859 rev

Newest

by launch date

64 oz Mason Jars with Lids Glass Jars for Canning Wide Mouth Mason Jars for Spice Storage Glass Jar with Lid for Pantry Organization Jars for Home Kitchen Canning Set of 6

Generic$22.9313 rev

2mo ago

64 oz Mason Jars Wide Mouth Half Gallon Canning Jars with Lids and Rings 6-Pack Extra Large Glass Jars for Home Canning and Pantry Storage

Generic$15.7322 rev

2mo ago

TZPLOQA 64 oz Mason Jars Wide Mouth Half Gallon Canning Jars with Lids and Rings 6-Pack Extra Large Glass Jars for Home Canning and Pantry Storage

TZPLOQA$16.8754 rev

5mo ago

64oz Glass Mason Jars Wide Mouth 3-Pack with Airtight & Leakproof Lids

STARSIDE$21.41199 rev

7mo ago

ODDMUCK 64oz Mason Jars with Lids 1 Pack Wide Mouth Glass Canning Jars

ODDMUCK$9.6964 rev

8mo ago

What buyers say about half gallon mason jar

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

What buyers love

Quality-Overall17%

“These are solid - good quality”

Size-Overall16%

“fits like a glove”

Ease Of Use9%

“Easy to use”

Advertised Vs Actual Product8%

“As Described”

Strength6%

“Sturdy Glass container”

Value For Money6%

“Excellent value”

Ease Of Cleaning6%

“cleans up beautifully”

Leak-Proof5%

“Leak free”

Storage Capacity5%

“Large capacity”

Thickness2%

“Beautiful and thick”

What buyers complain about

Durability14%

“broke into pieces”

Leak-Proof9%

“Leaking”

Size-Overall8%

“Small”

Quality-Overall7%

“Bad quality”

Strength5%

“This is not sturdy”

Value For Money4%

“a bit pricey”

Weight Heavy4%

“its super bulky”

Thickness4%

“The glass is thick”

Ease Of Use4%

“not easy”

Handle Quality4%

“Flimsy handle”

Top return reasons

Size-Overall60%

Value For Money10%

Advertised Vs Actual Product5%

Leak-Proof4%

Weight Heavy3%

Handle Quality2%

Functionality-Overall2%

Quality-Overall2%

Defective Material/Parts1%

Material Quality1%

Common questions

Is half gallon mason jar profitable to sell on Amazon United States?: The niche generates $915K/yr across 52 tracked products. 10 of 12 products launched in the last 360 days are still selling. 90-day search growth is +9.8%. Flapen's verdict: Launch it (66/100).
How competitive is the half gallon mason jar niche?: 36 brands and 61 sellers compete. The top 5 products take 36% of clicks and top 5 brands hold 55% of demand.
What do buyers complain about in half gallon mason jar?: Top complaints mined from reviews: Durability, Leak-Proof, Size-Overall. The return rate is 1.8%.
When does demand for half gallon mason jar peak?: Demand peaks in Sep; the busiest month runs 1.7× the quietest.
What does it cost to enter the half gallon mason jar niche?: Listings span $9.69–$55.96; the average listing price is $21.80 (sweet spot $15–$100). The average incumbent carries 2,613 reviews — the moat a new listing must climb.