It’s half-way through the school year. You’ve decided warm lunches are the best option. Great call! Hot pasta at recess, warm leftovers, chicken nuggets for your fussy eater. 

It's a total game-changer, especially for kids who just don’t want a sandwich anymore. 

But then you search for an affordable option that actually works and have no idea where to go from there. What makes it high-quality? How long does it stay warm for? What size do I get? Will it even fit in my kids’ lunch bag? 

We get it. Let's break it down simply, so you can grab the right one and get back to your day.

The Insulated Fusion Food Jar Range

Insulated Mini Food Jar (200ml)

Perfect for younger kids, smaller appetites, or as an add-on to a bigger lunchbox.

The Mini Food Jar fits neatly inside the Feast Lunch Box which makes it brilliant if you want to pack a hot component alongside cold snacks without needing a separate bag. Great for:

• Kindy and early primary kids

• Fussy eaters who need warm food but don't eat huge amounts

• Parents who want to pack a hot element inside the Feast

Insulated Food Jar (400mL)

The everyday workhorse. More capacity for bigger kids, bigger appetites, and those days when leftovers need to do some serious heavy lifting. Still keeps food hot for up to 8 hours.

Great for:

• Primary school kids with bigger appetites

• Families who want one thermos to do most jobs

• Packed lunches that need to hold heat through a full school day

Note: 

Due to the bigger capacity, the Food Jar doesn’t fit inside any lunch boxes, however, is the perfect addition in the Large Lunch Bag 

The New Roam Insulated Food Pot Range

The Roam Food Pots are a newer addition, designed with a slightly different shape and some clever sizing for specific situations. Both keep food hot or cold for up to 7 hours.

Roam Insulated Snack Pot (260ml)

It's actually bigger than the Mini Food Jar, even though the name says "snack." The taller, slimmer shape means it slots into both the Feast and the Bite Box without any fuss, making it a great option if you want something that fits inside a lunchbox setup.

It also works beautifully for cold food too, overnight oats, yoghurt, fruit salad, chia pudding. So if you're after flexibility between hot and cold depending on the season, this one's worth a look.

Great for:

• Families who want a food jar that fits inside the Feast or Bite Box

• Hot and cold use (warm pasta in winter, yoghurt in summer)

• Kids who eat about 5 nuggets worth of hot food 

So, Which One Should You Get?

Here's a quick way to think about it:

If your child is in Kindy or lower primary and you want something that fits inside the Feast — go with the Mini Fusion Food Jar. It's the perfect fit, literally.

If your child is primary school age with a decent appetite — the Fusion Food Jar (standard size) is the everyday staple. Reliable, proven, and loved by thousands of families.

If you want flexibility between hot and cold, or something that fits in the Feast or Bite Box — the Roam Snack Pot (260ml) is a great pick. Don't let the name fool you, it holds more than the Mini.

If you're packing big meals for long days, sports carnivals, or older kids — the Roam Lunch Pot (300ml) is your go-to. It's a standalone option and it means business.

One More Thing: Lunchbox Compatibility at a Glance

Whether your kid lives for leftover pasta or you're just trying to get some warm calories into a picky eater, there's a MontiiCo Food Jar that'll do the job.

Still not sure? Head to our Food Jar and Food Pot pages for more details, or check out our troubleshooting guide for tips on getting the best heat retention every time.

Shop our entire Food Jar Collection now.