Overview

Instantly Ready. Perfectly Warm. Total Peace of Mind.

🏆 Mum Central Parenting Product of the Year Gold Winner 2026

Night feeds, road trips, daycare drop-offs — formula feeding doesn’t always happen near a kettle. The Cherub Baby Instant Warm Smart Flask is designed to keep sterilised water at the perfect temperature for up to 12 hours, so you can prepare bottles anytime, anywhere with confidence.

Crafted from premium 304-grade stainless steel and built with advanced multi-layer vacuum insulation, this smart flask maintains consistent warmth without cords, charging or power. Whether it’s a 3am bedside feed or a busy day out, warm sterilised water is always ready when your baby needs it.

The inbuilt digital thermometer and colour-coded safety light system remove the guesswork. At a glance, you’ll know if the water is too hot, too cool, or just right — no wrist testing, no second guessing. The fully sealed, washable lid supports proper hygiene, while the durable carry handle and protective silicone base make it practical for everyday life.

Designed for real families and backed by Cherub Baby’s commitment to safe feeding solutions, this is formula feeding made simpler.

Browse our all portable baby bottle warmers options for breast milk and formula.

Features

Why Parents Love It

Inbuilt digital thermometer with easy-read display
Smart “traffic light” temperature light system. Green is warm/safe, Yellow – too cold, Red -too hot
Keeps sterilised water warm for up to 12 hours
Advanced triple-layer vacuum insulation
Scratch resistant powder coated outer layer
Premium 304-grade stainless steel
Generous 500ml capacity — ideal for multiple feeds
Fully washable, leak-proof lid for better hygiene
Strong carry handle for on-the-go convenience
5 year battery guarantee
One button operation. No charging, no cables.
BPA-free, rust-resistant and built to last
Use it after formula feeding for warm drinks.

Warm water. Zero guesswork. Wherever you are.

Specs:

2 Year Product Warranty
Capacity 500ml
Net Weight 180g
Size 8.5 x 8.5 x 27cm

What’s in the box?

Instant Warm Smart Flask
Instruction Manual

FAQ's

Q. How long does the battery in the formula flask lid last?
A. The lid battery lasts up to 5 years when used and stored correctly. That’s years of reliable temp checks and warm bottles without the stress. Any issues with the lid, just reach out to us and we’ll be happy to assist.

Q. Does the bottle warming flask require charging?
A. No cords. No charging. No worries. 🙌 Being completely charge free,our Instant Warm Smart Flask has no down time and is ready to serve perfect temp warmth for Bub’s bottle 24/7.

Q. How do I clean the flask?
A. Easy to clean! Before sterilising simply wash and rinse in warm soapy water. Do not submerged the lid in water and never expose the lid to steam as it can damage the components. Wipe lid down with a food safe antibacterial wipe or alcohol wipe to sterilise. Don’t forget that pouring the boiling water into the flask will sterilise the internal walls and lid.

Q. Where can I read the instruction manual?
A. Every flask comes with a printed manual in the box. Also check the link here

Q: Can I use breast milk in the formula maker?

Given that breast milk should never be heated to high temperatures, this product is really only suited for cooling hot liquids, so it's geared to make up formula bottles.

Q: Can I take this on a plane?

A: Absolutely — it’s a travel must-have! 🌍

It’s perfect for plane trips, and most airlines are happy to provide boiled water onboard.

Q: What materials is the Instant Warm Smart Flask?

A: Made with scratch resistant powdercoat outer, 201 Stainless steel outer layer, 304 stainless steel inner, vacuum centre layer .

Q: How to sterilise the Instant Warm Smart Flask

A: Fill the flask with clean boiling water & seal the lid. Swish it around, Wait for 5 minutes then empty.

Shipping

Shipping rates for Portable Bottle Warmer (Australia, New Zealand and worldwide)

For current shipping rates please refer to our shipping policy page.

Current processing times.

Current processing time is 1-2 business days before orders ship.

An estimate of current delivery times (once items are fulfilled):

Melb, Sydney, Brisbane Metro (Australia) 3-7 business days
VIC-Regional, NSW regional (Australia), 4-10 business days
QLD, SA, WA, TAS, NT (Australia) – 5-14 business days
New Zealand – 5-14 business days
Rest of the World – 10-21 business days

International

International parcels are shipped with Australia Post with tracking. For estimated shipping times please refer to our shipping page.

All

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