Insulated Food Jar 400ml Green
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Highlights
Highlights
- Triple-wall vacuum insulation for long-lasting temperature control
- Keeps food warm for up to 6h and cold for up to 7h
- Stays cool and dry on the outside, regardless of contents
- Integrated carry handle for easy transport
- Leakproof seal keeps bags clean and prevents spills
- Lid opens vertically (no twisting) — easy for small hands
- Removable food divider for easy portioning
- Easy-to-clean with detachable silicone lid lining
- Holds up to 400ml of food
- Dimensions: 15.1cm x 7.6cm
- Perfect for adults and kids 18+ months
Materials
Materials
The Insulated Food Jar 400ml Green is designed with sustainable materials like food-grade 304 stainless steel for long-lasting use. Our food jar is safe from toxic materials (no BPA, phthalates, or lead).
- LFGB certified by SGS for safety and quality.
Care Instructions
Care Instructions
- Hand wash with warm, soapy water and let it air dry.
- Not safe for freezer or microwave use.
Tip for best performance:
- Keeps food warm for up to 6 hours, though heat retention varies by food density.
- Less dense foods like soups and saucy pasta stay warm longer than denser foods.
- Preheat the jar by filling it with boiling water for 5 minutes before adding hot food.
- Avoid opening the jar until mealtime to keep food warmer longer.
Shipping & Returns
Shipping & Returns
- Same-day dispatch for orders placed before 12 PM (Mon-Fri, excl. weekends & bank holidays)
- Shipping time: next-day delivery after dispatch
- Tracking Info provided once your order is dispatched
- Free shipping on orders over £40
- Next-day delivery not available for personalised items
- Personalised items dispatch in 3 business days (Mon-Fri, excl. weekends & bank holidays)
Note: Personalised items are excluded from our 14-Days return policy
Our 400ml Thermos Food Jar is the perfect companion for enjoying warm or cold meals on the go — whether you're packing hearty pasta, warming soups, or crisp salads.
Made from premium food-grade stainless steel with triple-wall insulation and a leak-proof lid, this jar vacuum-seals your food to keep meals warm for up to 6 hours or cold for up to 7. The exterior stays cool and dry to the touch, ideal for slipping into a school bag or work tote without worry.
Designed with convenience in mind, it features a carry handle for easy transport and includes a removable divider to separate food portions. Durable, portable, and stylish, it’s the perfect solution to enjoy food as if it was freshly made, wherever your day takes you.
A star pupil from day one!
From responsible backpacks made from PET recycled-bottles where children can store their meals and books, to lunch storage solutions that keep food mix-free, we have everything a child needs for the year ahead.
Get the little ones ready for the first day of school with our perfect Back to School Sets
United KingdomCan not use
Not great as once I removed the silicone part I the lid it is impossible to put back. We haven’t been able to use it
My Citron UK
We’re sorry to hear you’re having trouble with the lid. Please contact our customer support team at hello@mycitron.co.uk, and they’ll be happy to assist you with the instructions to reattach the silicone part. We appreciate your feedback!
United KingdomGreat food container
A good product that fills a niche in the market well. It is Large- too large for my 8yr old (who also wants a desert for his lunch!) He has a very good appetite but can only eat half of this. Keeps food warm, but not hot until lunch time. Haven’t tested it out for the full time stated on the blurb. A bit fiddly to clean the seal, but I’m used to it now, and overall I like the design. Only lost a star as the food is not piping hot at lunch time. We have had casseroles, stew, curry, pasta, soup in it every school day for the last month and never had a leak. Couldn’t find anything else similar to this on the market- the bowl shape is much better for kids than a deep thermos / cup shaped container.
United KingdomPoor
Looks great but lid won’t fit properly on it.
My Citron UK
Thank you for your feedback. We're sorry to hear about the trouble you're having with the lid. It’s possible that the silicone fitting isn’t properly in place, or that there might be too much food inside above the maximum fill line, which can affect the fit. We’d love to help resolve this for you. Please feel free to reach out to our customer support team at hello@mycitron.co.uk, and they’ll be happy to assist you further.
United KingdomLooks good but doesn’t work
Great looking little jar - fab size - BUT lid doesn’t stay on so have to use an elastic band and it doesn’t keep food cold - haven’t tried hot food - not massively impressed tbh
My Citron UK
Thank you for your feedback, and we are sorry to hear about your experience with our food jar. We appreciate your compliments on the design and size. We'd like to offer some tips that might help: 1) For the vacuum insulation to work, it's essential that the lid is properly closed. Please make sure not to exceed the maximum fill line, as overfilling can prevent the lid from sealing correctly. 2) Check that the removable silicone lining is properly fitted in the lid. A misaligned or damaged lining can also prevent a secure seal. If you’ve tried these steps and are still experiencing issues, please contact our customer support team at hello@mycitron.co.uk and they will be able to assist you further. Thank you.
United KingdomRasoul
it does not keep food warm more than 2 hours .
My Citron UK
We're sorry to hear about your experience. Please contact our customer service team at hello@mycitron.co.uk so we can assist you with this issue. Thank you for your feedback.