food flask
Skip itSoft demand (-46.2% this quarter) — this niche doesn't clear our bar today.
Competition
Great35%top-5 click share — an open shelf
Returns
Great1.8%return rate — above 5% kills the launch gate
Avg price
Good£13.96avg listing price — sweet spot $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Market size
Good£430K£430K/yr · 1.6M searches
Price range
Good£6.74–£25.85cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay84%top-5 brand share — brands hold most of the demand
Conversion
Bad2.0%search→purchase rate — share of searches ending in a sale
Review moat
Bad5,340.17avg incumbent reviews — the moat a new listing must climb
Growth
Bad-46.2%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, food flask is a £430K/yr Amazon United Kingdom market (1.6M searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Jan–Sep–Oct–Nov. Verdict: Skip it — 48/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
food flask market data
- Units sold / yr
- 40K–50K
- avg 750–1,000/product
- Revenue / yr
- £558K–£698K
- units × avg price
- Conversion rate
- 2.0%
- Avg BSR
- #60
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 95%
- Out of stock
- 4.7%
- Avg brand age
- 34 months
- Avg seller age
- 175 days
Competition & brand share
Clicks spread well past the top 5 (35% combined) — an open shelf where new products get seen.Brands
16 falling
Sellers
99
Top-5 brand share
84%
Top 20: 100%
Top-5 click share
35%
Top 20: 79%
Open market
12%
- Thermos41%
- Polar Gear27%
- Décor9%
- Kichna4%
- Dreamhigh4%
- STANLEY3%
- Open — no brand owns it (10 brands, 12%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -46.2% search growth over the last 90 days.Peak months: Jan, Sep, Oct, Nov · busiest ÷ quietest = 4.1×
Top food flask search terms
- food flask378K/yr
- thermos food flask218K/yr
- food flasks for hot food179K/yr
- insulated food container69K/yr
- soup flask188K/yr
- hot food flask100K/yr
- food thermos62K/yr
- thermal food container51K/yr
- hot food containers48K/yr
- kids food flask34K/yr
Top food flask 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Thermos Stainless King Food Flask 470ml Capacity - Sleek Multi- Purpose Flask for Daily Food Prep - Durable Stainless Steel with Classic Red Finish - Ideal for On-the-Go Meals & Drinks
Thermos£14.724.6★26,139 rev
Thermos Stainless King Food Flask 470ml Capacity - Sleek Multi- Purpose Flask for Daily Food Prep - Durable Stainless Steel with Classic Duck Egg Finish - Ideal for On-the-Go Meals & Drinks
Thermos£16.714.6★26,139 rev
Polar Gear 600ml Hot Food Flask & Foldable Spoon - Vacuum Insulated Double Wall Stainless Steel Thermos Soup Flask Jars Leakproof and BPA Free - Lunch Thermal Food Flasks for Hot Food Kids & Adults
Polar Gear£11.544.6★109 rev
Polar Gear Insulated Food Flasks For Hot Food Triple Layer Stainless Steel Hot Food Flask With Spoon Keep Meals & Drinks Hot for 6 Hours & Cold for 6 Hours Soup Flask For Work School - Blue
Polar Gear£11.044.4★1,196 rev
Kichna Double Walled Stainless Steel thermal Food Flask Tub | BPA Free Lid Leak & Spill Proof Jar with Handle | Keeps Cold for 6Hrs or Hot for 6Hrs - Blush Pink
Kichna£8.154.0★143 rev
Newest
by launch datePolar Gear 600ml Hot Food Flask & Foldable Spoon - Vacuum Insulated Double Wall Stainless Steel Thermos Soup Flask Jars Leakproof and BPA Free - Lunch Thermal Food Flasks for Hot Food Kids & Adults
Polar Gear£11.54109 rev
Polar Gear 600ml Hot Food Flask & Foldable Spoon - Vacuum Insulated Double Wall Stainless Steel Thermos Soup Flask Jars Leakproof and BPA Free - Lunch Thermal Fod Flasks for Hot Food Kids & Adults
Polar Gear£11.65109 rev
Polar Gear 600ml Hot Food Flask & Foldable Spoon - Vacuum Insulated Double Wall Stainless Steel Thermos Soup Flask Jars Leakproof and BPA Free - Lunch Thermal Food Flasks for Hot Food Kids & Adults
Polar Gear£11.60109 rev
Décor 350ml Kids Insulated Food Flask - Double Wall Stainless Steel Container with Wide Opening Airtight Leakproof Lid 4h Hot / 9h Cold - Purple
Décor£6.7475 rev
520ml Insulated Food Flasks For Hot Food Double-Wall Stainless Steel Hot Food Flask With Spoon Thermal Lunch Box keeps Meals Drinks Hot or Cold for 6 Hours Leakproof Soup Containers (Black)
Polar Gear£11.26528 rev
Trending
90-day click momentum
Andmenow 80W Faster Electric Lunch Box Update Home Office Truck Car Food Warmer Portable Food Heater with 304 Stainless Steel Container Spoon & Fork and Carry Bag (GreyGreen)
Andmenow£16.134.5★
Thermos Stainless King Food Flask 710ml Capacity - Sleek Multi- Purpose Flask for Daily Food Prep - Durable Stainless Steel with Matt Black Finish - Ideal for On-the-Go Meals & Drinks
Thermos£19.674.6★
Polar Gear 600ml Hot Food Flask & Foldable Spoon - Vacuum Insulated Double Wall Stainless Steel Thermos Soup Flask Jars Leakproof and BPA Free - Lunch Thermal Food Flasks for Hot Food Kids & Adults
Polar Gear£11.544.6★
Kichna Double Walled Stainless Steel thermal Food Flask Tub | BPA Free Lid Leak & Spill Proof Jar with Handle | Keeps Cold for 6Hrs or Hot for 6Hrs - Blush Pink
Kichna£8.154.0★
STANLEY 1913 Classic Food Jar With Spork 0.4L - Rose Quartz
STANLEY£25.554.6★
What buyers say about food flask
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent product”
“Reliable insulation, sturdy build, and great for keeping meals hot for hours”
“Great size”
“Good for the price”
“Keeps it warm”
“keeps food warm as stated”
“As described”
“doesnt leak”
“Easy to use”
“It has a big opener which is useful while cleaning”
What buyers complain about
“Does not retain heat at all”
“Load of rubbish”
“So a total waste of money”
“sometimes what he wants to take in there doesnt quite fit”
“broke after a few use”
“Didnt keep food warm”
“just doesnt do what description says it does”
“My flask leaks”
“Does not keep food warm”
“Doesnt do the job”
Top return reasons
Common questions
- Is food flask profitable to sell on Amazon United Kingdom?
- The niche generates £430K/yr across 41 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is -46.2%. Flapen's verdict: Skip it (48/100).
- How competitive is the food flask niche?
- 16 brands and 99 sellers compete. The top 5 products take 35% of clicks and top 5 brands hold 84% of demand.
- What do buyers complain about in food flask?
- Top complaints mined from reviews: Heating, Quality-Overall, Value For Money. The return rate is 1.8%.
- When does demand for food flask peak?
- Demand peaks in Jan–Sep–Oct–Nov; the busiest month runs 4.1× the quietest.
- What does it cost to enter the food flask niche?
- Listings span £6.74–£25.85; the average listing price is £13.96 (sweet spot $15–$100). The average incumbent carries 5,340 reviews — the moat a new listing must climb.