OASIS STAINLESS STEEL DOUBLE WALL INSULATED FOOD FLASK W/ QUICK RELEASE LID - 300ML - Lilac

Oasis Kids Insulated Food Flask – 300ml Stainless Steel Lunch Jar

Keep school lunches hot, cold, and totally stress-free.

The Oasis Kids Insulated Food Flask is the ultimate lunchbox companion for little ones on the go. Built from premium 18/8 food-grade stainless steel and packed with double-wall vacuum insulation, it keeps hot food warm for up to 5 hours and cold food fresh for up to 7 hours — from morning drop-off all the way to lunchtime.  (food choice dependant)

Whether it's a cosy soup, leftover pasta, creamy yoghurt, or fresh fruit, this 300ml food jar handles it all — at kindy, school, daycare, or weekend adventures.

Why Parents Choose the Oasis Food Flask

Designed for kids, loved by parents. Every detail of this insulated food jar is built around ease and independence:

• Easy-Open Quick-Release Lid – Little hands can open it themselves. No wrestling, no frustration.
• Perfect School Size – Not too big, not too small.
• Safe Materials – BPA-free, lead-free, and food-grade stainless steel throughout. Nothing nasty, ever.
• Non-Slip Powder-Coated Finish – Vibrant, grippy, and tough enough for the daily school run.
• Less Waste – Say goodbye to single-use plastic wrap and soggy sandwiches. Reusable, every day.

What Can You Pack In It?

Hot foods (up to 5 hours): Soups, Spaghetti Bolognese, Fried rice, noodles with vegetables, stews, leftovers.  (See our troubleshooting guidefor more information)

Cold foods (up to 7 hours): Yoghurt, fruit salad, smoothies, pasta salads, dips

Good to know: Dense, saucy foods retain heat longer than dry or air-filled ones. For best results, always pre-heat the jar with boiling water before adding hot food — this activates the insulation and dramatically improves temperature retention.

Not getting the results you expect? Visit our Food Flask Troubleshooting & Care Guide for step-by-step help.

Product Specifications

Please note: This food flask does not fit inside the b.box Lunchbox range.

Care & Usage Tips

1. Pre-heat for hot food – Fill the jar with boiling water, leave for 2–3 minutes, discard, then add your food. This single step makes the biggest difference to heat retention.
2. Hand wash only – Avoid dishwashers to preserve the powder-coat finish and vacuum seal.
3. Keep heat and cold separate – Don't pack an ice brick directly against the flask when it contains hot food — it works against the insulation.
4. Pre-cool for cold food – Fill with iced water for a few minutes before packing cold snacks.

For more detailed care advice and common fixes, check out our Food Flask Troubleshooting & Care Guide.

Frequently Asked Questions

How long does the Oasis Food Flask keep food hot? Up to5 hours when pre-heated with boiling water before filling.

Is the Oasis Food Flask dishwasher safe? Hand washing is recommended to maintain the finish and insulation performance. See our Troubleshooting & Care Guide for full care instructions.

What size is the Oasis Kids Food Flask? It holds 300ml and measures 7.6cm tall by 10cm in diameter — compact enough for most school lunchboxes.

Is this food flask BPA-free? Yes. It is made from BPA-free, lead-free, food-grade 18/8 stainless steel.

Does it fit in the b.box Lunchbox? No — this jar does not fit inside the b.box Lunchbox range.

My food isn't staying hot — what should I do? The most common fix is pre-heating the jar with boiling water for 2–3 minutes before adding food. For more solutions, visit our Food Flask Troubleshooting & Care Guide.

Available in multiple colours. Grab yours today — the lunchtime upgrade your kids will actually thank you for.