Kilner Jars
FailThe top 5 brands take 100% of clicks, so Kilner Jars is a Fail.
- Flapen Score
- 39 / 100Ranks 4,947 of 5,777 Home & Garden niches · −12 vs the category median of 5139
- Market size
- £426K/yr576K searches / yr
- 90-day growth
- -15.0%search demand this quarter
- Competition
- 77%top-5 click share · 2 brands · 47 sellers
Flapen Score
Kilner Jars against its category
The dotted line is the Home & Garden average. Past it, Kilner Jars is stronger. Inside it, weaker.
Market
The Kilner Jars market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Kilner Jars 576K times last year and spent an estimated £426K. All 2 brands take every click. Flapen scores it 39 out of 100, a Fail.
01 · Demand
An estimated 8.6% of those searches ended in a purchase.
Shoppers searched for this 576K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 8.6% of those searches ended in a purchase. Searches in the last 90 days moved -15.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated £426K a year.
- Searches, last 12 months
- 576K
- Growth, 90 days vs prior 90
- -15.0%
- Conversion, latest week
- 8.6%
- Market size, estimated
- £426Ka year
- Peak month
- October1.6× the quietest month
- Top search term
- kilner jars390K searches a year
02 · Price
A sale here is worth £8.66.
Listings sell for £8.66 on average, from £2.27 to £22.00. Amazon reports units sold in ranges. This niche sold 60K to 80K a year. The average listing sells 2,000 to 2,500 of them. At £8.66 that is £17K to £22K a year per listing.
- Average price
- £8.66under the $15 to $100 sweet spot
- Price range
- £2.27–£22.00
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 60K–80K
- Units per listing a year
- 2,000–2,500
- Revenue per listing a year
- £17K–£22K
- Returns
- 0.8%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is reviews.
8% of listings pay for placement with sponsored ads. 85% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #19 within Food Storage. It carries 2,381 reviews at 4.62 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 8%
- Prime listings
- 85%
- Out of stock, average day
- 0.0%
- Average rank
- #19in Food Storage
- Average rating
- 4.62 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 2,381per listing
- Listings tracked
- 13
04 · Newcomers
Brands here are young.
The brands on the shelf have sold for 34 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 34 months
Products
Top Kilner Jars products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 27, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Kilner Clip Top Jar 1 Litre (1000ml) Airtight Glass Storage Jar for Preserving Fruits Vegetables Coffee Tea Rice Flour Nuts Pasta
- Price
- £3.45
- Rating
- 4.7/5
- Reviews
- 5,001
- Age
- 20y ago

Kilner Clip Top Jar 2 Litre (2000ml) Airtight Glass Storage Jar for Preserving Fruits Vegetables Coffee Tea Rice Flour Nuts Pasta
- Price
- £5.00
- Rating
- 4.7/5
- Reviews
- 5,686
- Age
- 20y ago

Kilner Preserve Jar 0.5L (500ml) Round Glass Screw Top Lid Preservation Storage Jar for Jams Chutneys Small Pickled Fruits
- Price
- £2.27
- Rating
- 4.6/5
- Reviews
- 3,565
- Age
- 19y ago

Kilner Set of 3 Round Clip Top Jars 0.5 Litre (3 x 500ml) Airtight Glass Storage Jars for Preserving Jams Dry Foods Reusable
- Price
- £10.41
- Rating
- 4.7/5
- Reviews
- 816
- Age
- 5y ago

Kilner Preserve Jar 1L (1000ml) Round Glass Screw Top Lid Preservation Storage Jar for Pickling Vegetables Whole Fruits Chunky Chutneys
- Price
- £2.88
- Rating
- 4.6/5
- Reviews
- 2,474
- Age
- 15y ago
Trending
estimated 90-day click momentum
Kilner Square Clip Top Jar 250ml (0.25L) Airtight Glass Jar for Storing Herbs Spices Dried Fruits Nuts and Seeds
- Price
- £4.54
- Rating
- 4.4/5
- Reviews
- 77
- Age
- 2y ago

Kilner Clip Top Jar 2 Litre (2000ml) Airtight Glass Storage Jar for Preserving Fruits Vegetables Coffee Tea Rice Flour Nuts Pasta
- Price
- £5.00
- Rating
- 4.7/5
- Reviews
- 5,686
- Age
- 20y ago

Kilner Square Clip Top Jar 3L (3000ml) Airtight Glass Jar for Preserving Whole Fruits Vegetables and Storing Cereals Pasta Nests Pet Biscuits
- Price
- £10.70
- Rating
- 4.5/5
- Reviews
- 160
- Age
- 2y ago

Kilner Preserve Jar 1L (1000ml) Round Glass Screw Top Lid Preservation Storage Jar for Pickling Vegetables Whole Fruits Chunky Chutneys
- Price
- £2.88
- Rating
- 4.6/5
- Reviews
- 2,474
- Age
- 15y ago

Kilner Clip Top Jar 1 Litre (1000ml) Airtight Glass Storage Jar for Preserving Fruits Vegetables Coffee Tea Rice Flour Nuts Pasta
- Price
- £3.45
- Rating
- 4.7/5
- Reviews
- 5,001
- Age
- 20y ago
Newest
by launch date
HEFTMAN Clip Top Glass Jars Set of 6-1 Litre Airtight Glass Jars with Lids & Silicone Seal for Pasta Sourdough Starter Chutney Pickling Kitchen Organisation - Empty Food Storage Jar Set (6 Pack)
- Price
- £17.18
- Rating
- 4.7/5
- Reviews
- 159
- Age
- 1y ago

Kilner Square Clip Top Jar 250ml (0.25L) Airtight Glass Jar for Storing Herbs Spices Dried Fruits Nuts and Seeds
- Price
- £4.54
- Rating
- 4.4/5
- Reviews
- 77
- Age
- 2y ago

Kilner Square Clip Top Jar 3L (3000ml) Airtight Glass Jar for Preserving Whole Fruits Vegetables and Storing Cereals Pasta Nests Pet Biscuits
- Price
- £10.70
- Rating
- 4.5/5
- Reviews
- 160
- Age
- 2y ago

Kilner Square Clip Top Jar Set of 3 1 Litre (1000ml) Airtight Glass Jars for Storing Coffee Beans Pickling Vegetables Chutneys Pasta Nuts BPA-Free Dishwasher Safe
- Price
- £12.80
- Rating
- 4.6/5
- Reviews
- 510
- Age
- 4y ago

Kilner Set of 3 Round Clip Top Jars 0.5 Litre (3 x 500ml) Airtight Glass Storage Jars for Preserving Jams Dry Foods Reusable
- Price
- £10.41
- Rating
- 4.7/5
- Reviews
- 816
- Age
- 5y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 77% of clicks. A locked shelf that new listings rarely crack.
Brands
2 falling
Sellers
47
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
77%
Top 20: 100%
Open market
0%
- Kilner98%
- HEFTMAN2%
- Open — no brand owns it (0%)
Demand
Kilner Jars search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.6×
Search terms
Top Kilner Jars search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- kilner jars390K/yr
- kilner95K/yr
- kilner jar66K/yr
- kilner clip top jars5K/yr
- kilner jars uk4K/yr
- glass kilner jars3K/yr
- kilner storage jars5K/yr
- kilner preserving jars4K/yr
- killer jar3K/yr
Reviews and returns
What reviews say buyers love and hate about Kilner Jars
We read the reviews and the return reasons for every product selling here.
“Not great quality glass”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Kilner Jars questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









