---
title: "Mason Jars with Lids — £217K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/mason-jars-with-lids"
last_updated: "2026-08-01T02:16:03.716Z"
locale: en
meta:
description: "Niche score 43/100 · £217K/yr market · 402K searches/yr · £9.46 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 43/100 · £217K/yr market · 402K searches/yr · £9.46 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Mason Jars with Lids — £217K/yr Amazon UK Niche (2026) - Flapen"
---
# **mason jars with lids**
**Skip it**
Soft demand (-11.2% this quarter) — this niche doesn't clear our bar today.
Market size 42Growth 19Conversion 64Competition 35Returns 97Price range 30Avg price 29Brand share 34Review moat 51Quality gap 33
**Returns**
**Incredible****0.7%**
return rate — above 5% kills the launch gate
**Conversion**
**Good****5.7%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****1,475.76**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Okay****£217K**
£217K/yr · 402K searches
**Competition**
**Okay****64%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****85%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Price range**
**Okay****£2.27–£20.37**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Okay****£9.46**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-11.2%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, mason jars with lids is a £217K/yr Amazon United Kingdom market (402K searches/yr). The top 5 brands hold 85% of demand. Verdict: Skip it — 43/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mason jars with lids market data**
- **Units sold / yr**
- **25K–30K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **£237K–£284K**
- units × avg price
- **Conversion rate**
- **5.7%**
- **Avg BSR**
- **#790**
- **Page quality**
- **0%**
- **Prime**
- **95%**
- **Sponsored**
- **71%**
- **Out of stock**
- **4.0%**
- **Avg brand age**
- **32 months**
- **Avg seller age**
- **180 days**
## **Competition & brand share**
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**13 **▼falling
**Sellers**
**53**
**Top-5 brand share**
**85%**
Top 20: 100%
**Top-5 click share**
**64%**
Top 20: 99%
**Open market**
**12%**
- Kilner47% - Hniuyun21% - Showvigor7% - ComSaf5% - EkkoVla4% - LOFERMA3% - Open — no brand owns it (7 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -11.2% search growth over the last 90 days.
12K8KSpike '25Prime Day '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/uk/home-garden/mason-jars-with-lids/trend)
## **Top mason jars with lids search terms**
- **mason jar**155K/yr-11.4%5.5% conv. - **mason jars with lids**139K/yr-14.2%4.4% conv. - **mason jars**92K/yr-5.6%3.4% conv. - **glass mason jars with lids**8K/yr-16.4%5.3% conv. - **glass mason jars**4K/yr+0.6%2.9% conv. - **masonry jars with lids**3K/yr-17.6%4.0% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/mason-jars-with-lids/search-terms)
## **Top mason jars with 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.
0%5%£11K10%£22K15%£33K20%£43K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 21 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Kilner Preserve Jar 0.5L (500ml) Round Glass Screw Top Lid Preservation Storage Jar for Jams Chutneys Small Pickled Fruits**Kilner**£2.27**4.6★3,565 rev](https://www.amazon.co.uk/dp/B0030G0FG0) [2**Hniuyun 4 pack Glass Regular Mouth Mason Jars Clear Glass Jars with Silver Metal Lids for Sealing Food Storage Overnight Oats Dry Food Snacks Candies DIY Projects (16 oz**Hniuyun**£7.36**4.4★644 rev](https://www.amazon.co.uk/dp/B0BNBDLD8R) [3**Kilner Clip Top Jar 1 Litre (1000ml) Airtight Glass Storage Jar for Preserving Fruits Vegetables Coffee Tea Rice Flour Nuts Pasta**Kilner**£3.45**4.7★5,001 rev](https://www.amazon.co.uk/dp/B0030FUHR8) [4**Kilner Preserve Jar 1L (1000ml) Round Glass Screw Top Lid Preservation Storage Jar for Pickling Vegetables Whole Fruits Chunky Chutneys**Kilner**£2.88**4.6★2,474 rev](https://www.amazon.co.uk/dp/B007FT5C5W) [5**Showvigor 4 Pack Regular Mouth Mason Jars 16oz Glass Canning Jars with Airtight Lids for Preserving Jam Honey Jelly Wedding Favors Sauces Meal Prep Overnight Oats Salad**Showvigor**£7.43**4.7★10 rev](https://www.amazon.co.uk/dp/B0GGH8TV64)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Showvigor 4 Pack Wide Mouth Mason Jars 16oz Glass Canning Jars with Airtight Lids for Preserving Jam Honey Jelly Wedding Favors Sauces Meal Prep Overnight Oats Salad**Showvigor**£7.59**36 rev4mo ago](https://www.amazon.co.uk/dp/B0GV4DQLFQ) [**ComSaf Mason Jars with Lids 480ml/16oz 6 Pack Airtight Glass Jars with Lids Canning Jars for Pickling Jam Chutney Overnight Oats Jar for Breakfast & Salad Glass Container for Dry Food Storage**ComSaf**£10.46**37 rev5mo ago](https://www.amazon.co.uk/dp/B0GPWL7JQ9) [**Showvigor 4 Pack Regular Mouth Mason Jars 16oz Glass Canning Jars with Airtight Lids for Preserving Jam Honey Jelly Wedding Favors Sauces Meal Prep Overnight Oats Salad**Showvigor**£7.43**10 rev6mo ago](https://www.amazon.co.uk/dp/B0GGH8TV64) [**EkkoVla 6-Pack 500ml Glass Mason Jars with Airtight Lids**EkkoVla**£10.04**48 rev8mo ago](https://www.amazon.co.uk/dp/B0G1SDWG7C) [**Overnight Oats Jar Glass Containers With Lids Mason jars with lids 500ml Glass Jars With Lids-Set Of 4 Overnight Oats Containers For Yogurt Pot Cereals Milk Fruit Condiment Dressing Sauce Snacks Juice**MHDCLY**£9.14**168 rev1y ago](https://www.amazon.co.uk/dp/B0FJLWXFRG)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**ComSaf Mason Jars with Lids 480ml/16oz 6 Pack Airtight Glass Jars with Lids Canning Jars for Pickling Jam Chutney Overnight Oats Jar for Breakfast & Salad Glass Container for Dry Food Storage**ComSaf**£10.46**4.4★**▲ 304%**](https://www.amazon.co.uk/dp/B0GPWL7JQ9) [**Showvigor 4 Pack Regular Mouth Mason Jars 16oz Glass Canning Jars with Airtight Lids for Preserving Jam Honey Jelly Wedding Favors Sauces Meal Prep Overnight Oats Salad**Showvigor**£7.43**4.7★**▲ 278%**](https://www.amazon.co.uk/dp/B0GGH8TV64) [**Showvigor 4 Pack Wide Mouth Mason Jars 16oz Glass Canning Jars with Airtight Lids for Preserving Jam Honey Jelly Wedding Favors Sauces Meal Prep Overnight Oats Salad**Showvigor**£7.59**4.6★**▲ 259%**](https://www.amazon.co.uk/dp/B0GV4DQLFQ) [**EkkoVla 6-Pack 500ml Glass Mason Jars with Airtight Lids**EkkoVla**£10.04**4.6★**▲ 136%**](https://www.amazon.co.uk/dp/B0G1SDWG7C) [**HYCKee 1000ml 6 Pack Mason Glass Jars with Black Lids Clear Regular Mouth Canning Jars for Jelly Jam Honey Wedding Favors Spices and Herbs**HYCKee**£16.73**4.7★**▲ 113%**](https://www.amazon.co.uk/dp/B0FDQKW928)
**~~View all trending →~~**
## **What buyers say about mason jars with lids**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**27%
*“Great producT”*
**Size-Overall**17%
*“Good size for my needs”*
**Value For Money**15%
*“Excellent value for money”*
**Advertised Vs Actual Product**8%
*“As advertised”*
**Storage Capacity**5%
*“Good storage”*
**Leak-Proof**4%
*“Leak proof”*
**Durability**4%
*“Durable”*
**Strength**4%
*“-the glass feels solid”*
**Ease Of Use**3%
*“Handy jar”*
**Ease Of Cleaning**2%
*“Easy to clean”*
### **What buyers complain about **
**Durability**18%
*“Breaks Easily”*
**Quality-Overall**16%
*“Not great quality glass”*
**Size-Overall**15%
*“Not fit for use”*
**Advertised Vs Actual Product**10%
*“The dimensions provided don't give enough information and are misleading”*
**Rusts/Corrodes**8%
*“it started rusting”*
**Smell**4%
*“does not hold smells in the same way as plastic containers can”*
**Ease Of Use**3%
*“very difficult to open when wet or moist”*
**Leak-Proof**3%
*“not leak proof”*
**Functionality-Overall**2%
*“they don't work / cannot keep food airtight”*
**Gifting Purpose**2%
*“shame really as they were a gift to someone just starting out on doing her own fruit bottling”*
### **Top return reasons **
**Size-Overall**67%
**Defective Material/Parts**9%
**Advertised Vs Actual Product**3%
**Functionality-Overall**3%
**Compatibility-Overall**2%
**Ease Of Use**2%
**Shape/Style**2%
**Quality-Overall**1%
**Value For Money**1%
**Maintenance And Repair**1%
## **Common questions**
- **Is mason jars with lids profitable to sell on Amazon United Kingdom?**
- The niche generates £217K/yr across 21 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is -11.2%. Flapen's verdict: Skip it (43/100).
- **How competitive is the mason jars with lids niche?**
- 13 brands and 53 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 85% of demand.
- **What do buyers complain about in mason jars with lids?**
- Top complaints mined from reviews: Durability, Quality-Overall, Size-Overall. The return rate is 0.7%.
- **When does demand for mason jars with lids peak?**
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- **What does it cost to enter the mason jars with lids niche?**
- Listings span £2.27–£20.37; the average listing price is £9.46 (sweet spot $15–$100). The average incumbent carries 1,476 reviews — the moat a new listing must climb.
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