mason jars with lids
Skip itSoft demand (-11.2% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.7%return rate — above 5% kills the launch gate
Conversion
Good5.7%search→purchase rate — share of searches ending in a sale
Review moat
Good1,475.76avg incumbent reviews — the moat a new listing must climb
Market size
Okay£217K£217K/yr · 402K searches
Competition
Okay64%top-5 click share — leaders hold, buyers still browse
Brand share
Okay85%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Price range
Okay£2.27–£20.37cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay£9.46avg 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
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.No pronounced peak months · busiest ÷ quietest = 1.5×
Top mason jars with lids search terms
- mason jar155K/yr
- mason jars with lids139K/yr
- mason jars92K/yr
- glass mason jars with lids8K/yr
- glass mason jars4K/yr
- masonry jars with lids3K/yr
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.
All 21 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Kilner Preserve Jar 0.5L (500ml) Round Glass Screw Top Lid Preservation Storage Jar for Jams Chutneys Small Pickled Fruits
Kilner£2.274.6★3,565 rev
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£7.364.4★644 rev
Kilner Clip Top Jar 1 Litre (1000ml) Airtight Glass Storage Jar for Preserving Fruits Vegetables Coffee Tea Rice Flour Nuts Pasta
Kilner£3.454.7★5,001 rev
Kilner Preserve Jar 1L (1000ml) Round Glass Screw Top Lid Preservation Storage Jar for Pickling Vegetables Whole Fruits Chunky Chutneys
Kilner£2.884.6★2,474 rev
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£7.434.7★10 rev
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£7.5936 rev
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£10.4637 rev
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£7.4310 rev
EkkoVla 6-Pack 500ml Glass Mason Jars with Airtight Lids
EkkoVla£10.0448 rev
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£9.14168 rev
Trending
90-day click momentumComSaf 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£10.464.4★
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£7.434.7★
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£7.594.6★
EkkoVla 6-Pack 500ml Glass Mason Jars with Airtight Lids
EkkoVla£10.044.6★
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£16.734.7★
What buyers say about mason jars with lids
What buyers praise and complain about, mined from review topics.What buyers love
“Great producT”
“Good size for my needs”
“Excellent value for money”
“As advertised”
“Good storage”
“Leak proof”
“Durable”
“-the glass feels solid”
“Handy jar”
“Easy to clean”
What buyers complain about
“Breaks Easily”
“Not great quality glass”
“Not fit for use”
“The dimensions provided don't give enough information and are misleading”
“it started rusting”
“does not hold smells in the same way as plastic containers can”
“very difficult to open when wet or moist”
“not leak proof”
“they don't work / cannot keep food airtight”
“shame really as they were a gift to someone just starting out on doing her own fruit bottling”
Top return reasons
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.