---
title: "4 Oz Canning Jars — $131K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/4-oz-canning-jars"
last_updated: "2026-08-09T07:48:35.637Z"
locale: en
meta:
description: "Niche score 56/100 · $131K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Aug 2026."
"og:description": "Niche score 56/100 · $131K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Aug 2026."
"og:title": "4 Oz Canning Jars — $131K/yr Amazon US Niche (2026) - Flapen"
---
# **4 oz canning jars**
**Worth a look**
Shows a sweet-spot price point ($27.28 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 29Growth 56Conversion 69Competition 57Returns 84Price range 89Avg price 95Brand share 51Review moat 63Quality gap 21
**Avg price**
**Incredible****$27.28**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$8.70–$90.01**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Great****1.6%**
return rate — above 5% kills the launch gate
**Conversion**
**Good****6.3%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****989.3**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****51%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Good****+29.7%**
90-day search growth — must beat 0% to launch
**Brand share**
**Good****74%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$131K**
$131K/yr · 77K searches
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, 4 oz canning jars is a $131K/yr Amazon United States market (77K searches/yr). The top 5 brands hold 74% of demand. Demand peaks in Sep–Nov–Dec. Verdict: Worth a look — 56/100.
Data updated Aug 5, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **4 oz canning jars market data**
- **Units sold / yr**
- **5K–6K**
- avg 100–250/product
- **Revenue / yr**
- **$136K–$164K**
- units × avg price
- **Conversion rate**
- **6.3%**
- **Avg BSR**
- **#316**
- **Page quality**
- **0%**
- **Prime**
- **93%**
- **Sponsored**
- **89%**
- **Out of stock**
- **1.4%**
- **Avg brand age**
- **42 months**
- **Avg seller age**
- **161 days**
## **Competition & brand share**
The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▲rising
**Sellers**
**43**
**Top-5 brand share**
**74%**
Top 20: 100%
**Top-5 click share**
**51%**
Top 20: 90%
**Open market**
**20%**
- Ball35% - CycleMore13% - UrSpeedtekLive12% - Mcupper8% - ComSaf6% - VERONES6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +29.7% search growth over the last 90 days.
6K4KBlack Friday '24Holiday '24Prime Day '25 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Nov, Dec · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/4-oz-canning-jars/trend)
## **Top 4 oz canning jars search terms**
- **4 oz canning jars**15K/yr+66.1%4.5% conv. - **4 oz canning jars with lids**9K/yr+27.1%5.7% conv. - **4oz canning jars**7K/yr+57.1%5.7% conv. - **ball 4 oz mason jars with lids**6K/yr+11.4%4.6% conv. - **ball mason jars 4 oz**8K/yr-18.1%3.2% conv. - **4oz canning jars with lids**7K/yr+22.1%6.2% conv. - **4 oz ball jars**6K/yr+28.2%4.0% conv. - **ball canning jars 4 oz**3K/yr+129.7%3.7% conv. - **4 oz ball jars with lids**3K/yr+133.2%3.5% conv. - **4oz ball jars**3K/yr+32.3%4.2% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/4-oz-canning-jars/search-terms)
## **Top 4 oz canning jars 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%$13K20%$26K30%$39K40%$53K101001K10K 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**Ball Wide Mouth Quilted Crystal Jelly Jars with Lids and Bands Used for Canning Pickling Juice Jam Jelly Quarter Pint Size (4 Ounce (Pack of 6))**Ball**$19.86**4.5★766 rev](https://www.amazon.com/dp/B07NS858W7) [2**UrSpeedtekLive 40 Pack 4 oz Mason Jars with Lids Small Canning Jars**UrSpeedtekLive**$28.11**4.7★233 rev](https://www.amazon.com/dp/B0F8BML5RM) [3**CycleMore 4oz Mason Jar 40 Pack Clear Glass Jars with Silver Split Lids**CycleMore**$28.65**4.7★1,506 rev](https://www.amazon.com/dp/B0CVWYYYKM) [4**ComSaf Mini Mason Jars 4 oz 8 Pack Regular Mouth Glass Jars with Lids**ComSaf**$11.93**4.7★4,848 rev](https://www.amazon.com/dp/B09YRC9SXW) [5**FORJARS Premium Mason Jars with Lids 4oz | Regular Mouth Canning Jars | 12-Pack Glass Jars for Jam Jelly Honey Spices Desserts Sauces Food Storage Freezer Safe Airtight Bulk Set**FORJARS**$19.24**4.7★129 rev](https://www.amazon.com/dp/B0FP3PVQJX)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**4 oz Small Embossed Mason Jars 24-Pack with Airtight Lids Leakproof**igoelove**$22.35**118 rev9mo ago](https://www.amazon.com/dp/B0FY61HCZG) [**STARSIDE 4oz Mini Glass Mason Jars 40-Pack with Airtight Silver Split Lids**STARSIDE**$27.64**1,166 rev10mo ago](https://www.amazon.com/dp/B0FT3L235Z) [**FORJARS Premium Mason Jars with Lids 4oz | Regular Mouth Canning Jars | 12-Pack Glass Jars for Jam Jelly Honey Spices Desserts Sauces Food Storage Freezer Safe Airtight Bulk Set**FORJARS**$19.24**129 rev11mo ago](https://www.amazon.com/dp/B0FP3PVQJX) [**Mcupper 4oz Glass Mason Jars with Airtight Lids Mini Canning Jars 40 Pack**Mcupper**$27.76**175 rev11mo ago](https://www.amazon.com/dp/B0FMY5RWZH) [**Ball - 4 oz Regular Mouth Glass Mason Jars | 11 Pack Jars with Airtight Lids | Large Glass Jar for Food Storage with Lids | Ideal for Canning Fermentation Pickling Kombucha Brewing | Set of 11**Ball**$27.59**24 rev1y ago](https://www.amazon.com/dp/B0FBKY5DVK)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Ball Jar Quilted Crystal Jelly (Case of 12) 8 oz**Ball**$12.01**4.9★**▲ 157%**](https://www.amazon.com/dp/B01LYV6CWZ) [**4 oz Small Embossed Mason Jars 24-Pack with Airtight Lids Leakproof**igoelove**$22.35**4.8★**▲ 130%**](https://www.amazon.com/dp/B0FY61HCZG) [**FORJARS Premium Mason Jars with Lids 4oz | Regular Mouth Canning Jars | 12-Pack Glass Jars for Jam Jelly Honey Spices Desserts Sauces Food Storage Freezer Safe Airtight Bulk Set**FORJARS**$19.24**4.7★**▲ 126%**](https://www.amazon.com/dp/B0FP3PVQJX) [**Ball Wide Mouth Quilted Crystal Jelly Jars with Lids and Bands Used for Canning Pickling Juice Jam Jelly Quarter Pint Size (4 Ounce (Pack of 8))**Ball**$22.53**4.5★**▲ 69%**](https://www.amazon.com/dp/B0D42DN6DB) [**Mcupper 4oz Glass Mason Jars with Airtight Lids Mini Canning Jars 40 Pack**Mcupper**$27.76**4.8★**▲ 50%**](https://www.amazon.com/dp/B0FMY5RWZH)
**~~View all trending →~~**
## **What buyers say about 4 oz canning jars**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**24%
*“Perfect size as a gift”*
**Quality-Overall**16%
*“Great product as expected”*
**Advertised Vs Actual Product**12%
*“Gets the job done”*
**Value For Money**10%
*“Great Value”*
**Gifting Purpose**9%
*“Perfect for homemade gifts”*
**Storage Capacity**3%
*“Perfect storage jars”*
**Durability**3%
*“Great when not broken”*
**Design-Overall**3%
*“Perfect classic design”*
**Strength**2%
*“Well made and sturdy”*
**Ease Of Use**2%
*“These little beauties are a real find for so many uses”*
### **What buyers complain about **
**Size-Overall**16%
*“Small jars”*
**Rusts/Corrodes**15%
*“Rusted in dishwasher”*
**Quality-Overall**7%
*“Plastic lids have horrible quality control”*
**Advertised Vs Actual Product**7%
*“the picture shows no images on the lid”*
**Value For Money**6%
*“They are cheaper here”*
**Durability**4%
*“They literally break in tens of pieces”*
**Thickness**3%
*“They are quite thin and flimsy, and buckle with the heat”*
**Cooking Experience**3%
*“But do NOT hold up for canning”*
**Ease Of Use**2%
*“which makes screwing them on more of a struggle than it should be”*
**Product Condition**2%
*“This does not seem like a new product”*
### **Top return reasons **
**Size-Overall**79%
**Value For Money**8%
**Advertised Vs Actual Product**6%
**Quality-Overall**1%
**Functionality-Overall**1%
**Rusts/Corrodes**1%
**Smell**1%
**Design-Overall**1%
**Jamming/Clogging**0%
**Leak-Proof**0%
## **Common questions**
- **Is 4 oz canning jars profitable to sell on Amazon United States?**
- The niche generates $131K/yr across 27 tracked products. 5 of 6 products launched in the last 360 days are still selling. 90-day search growth is +29.7%. Flapen's verdict: Worth a look (56/100).
- **How competitive is the 4 oz canning jars niche?**
- 14 brands and 43 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 74% of demand.
- **What do buyers complain about in 4 oz canning jars?**
- Top complaints mined from reviews: Size-Overall, Rusts/Corrodes, Quality-Overall. The return rate is 1.6%.
- **When does demand for 4 oz canning jars peak?**
- Demand peaks in Sep–Nov–Dec; the busiest month runs 2.1× the quietest.
- **What does it cost to enter the 4 oz canning jars niche?**
- Listings span $8.70–$90.01; the average listing price is $27.28 (sweet spot $15–$100). The average incumbent carries 989 reviews — the moat a new listing must climb.
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