Best B box Accessories to Upgrade Your Kids' Lunchbox

You spent $50 on the b.box lunch box. Your kid brought home half a sandwich, an untouched apple, and a look that said, "Thanks for nothing." The b.box lunch box itself is genuinely one of the best lunchboxes on the Australian market. But most parents pair it with the same rotation of sad fillings and wonder why nothing gets eaten. The box is only half the equation. The b.box accessories you pair it with are what turn a decent lunchbox into a lunch your kid actually finishes.

Here is exactly what to add, and why each piece earns its spot in the bag.

What Makes the b.box Lunch Box Worth Building Around

The b.box lunchbox is not designed like a generic school container. Most lunchboxes give you one or two rigid compartments and call it done. The b.box gives you a main compartment sized for a full sandwich or a bagel, a flexi fruit holder that stretches around a whole apple without any cutting involved, and a sliding divider you can reposition based on what you are packing that day.

The leak-proof silicone seals prevent wet food from leaking. Watermelon, yoghurt, and cucumber,  pack them without a second thought. Under the tray sits a gel cooler that keeps everything at a safe temperature without requiring you to stuff an ice brick into the bag separately.

Kids eat better when food stays organised. The b.box lunch box builds that in from the start.

The b.box Silicone Bento Tray: Small Upgrade, Big Difference

The b.box silicone bento tray is the one b.box accessory most parents discover only after a term of frustration. Without it, the main compartment is just a single open space. Crackers migrate into the fruit section. Dip tubs tip. Your kid opens the box, cannot identify anything, and closes it again.

The silicone tray drops straight into the main compartment, dividing it into dedicated sections. Dips stay with dips. Crackers arrive crisp. Cheese cubes stay in their corner instead of rolling under everything else.

Because it is silicone, it is flexible, it does not trap cold the way plastic does, and it goes straight in the dishwasher. The b.box Silicone Bento Buddy for the snackbox works the same way for smaller portions. If your child uses both the main lunchbox and a separate snack container, you can now get proper section dividers for both for under $12.

Adding a Food Flask: Hot Lunch Changes Everything

The b.box lunch box handles cold and room-temperature food brilliantly. It does not handle hot food. So when your child wants last night's pasta, a cup of soup, or rice with chicken, you need something that pairs with the setup rather than replaces it.

The Avanti YumYum Insulated Food Jar 300ml sits alongside the b.box lunch box inside the same insulated bag. It keeps food warm from 8:30 am through to a 1 pm lunch break. The 300ml size is generous for primary school kids without being too heavy for small hands. The opening is wide enough for a spoon or fork, so your child can eat directly from it at the table, on the bus, or at a school canteen bench without unpacking anything else.

For younger children or smaller appetites, the Oasis Insulated Food Flask 230ml is the right choice. The same insulation performance, a more manageable size for Kindy and Year 1. Both sit neatly beside the b.box lunch box inside a standard insulated lunch bag. Browse the full insulated food jar range to compare sizes and colours before deciding.

Packing hot food properly also matters for food safety. Food Standards Australia New Zealand notes that hot food being transported needs to stay hot, and that insulated bags are the recommended method for doing so. A properly pre-heated food flask handles that job for the school run without any extra effort on your part.

The Oasis Juice Box: Why It Works Better Than a Drink Bottle for Young Kids

Kids are not great with complicated lids at 12:30 pm when they are already tired and hungry. Screw caps get left off. Flip lids do not seal properly. The drink rolls around the bag and arrives with a soggy base.

The Oasis Kids Tritan Juice Box with Straw 300ml solves this. It is the squeeze-and-sip format kids already know from birthday parties, except you fill it yourself with water or diluted juice and reuse it every day. No complicated mechanism. No lid to figure out mid-lunch break. The Tritan material is BPA-free and durable enough to survive a school bag without cracking.

The 300ml size is sized for primary school children, fits inside any standard insulated lunch bag alongside the b.box lunch box, and does not roll. Younger kids in particular take to it immediately because it asks nothing of them.

Building the Full b.box System

Here is what a complete b.box lunch box accessories kit looks like when you put it together:

• b.box Lunchbox (large or mini): The core of the setup, with the flexi fruit holder, sliding divider, leak-proof seals, and built-in gel cooler. This is where the main meal lives, whether that is a sandwich, a wrap, or a bento-style mix of proteins and snacks.

• b.box Silicone Bento Tray: Drops into the main compartment and creates defined food sections, so nothing mingles, everything is findable, and crackers stay crisp from morning prep to midday.

• Avanti YumYum 300ml or Oasis Food Flask 230ml: Sits alongside the lunchbox inside the bag and handles anything warm: pasta, noodles, soup, and leftover rice dishes. Your hot food options open up entirely, and last night's dinner stops going to waste.

• Oasis Juice Box with Straw 300ml: Replaces the standard drink bottle for younger kids. Familiar format, reusable, leak-resistant, fits the bag without rolling around.

A packed b.box lunch box with these four pieces handles hot food, cold food, dry snacks, wet dips, and a drink without any single container being asked to do something it cannot. The Australian Dietary Guidelines list five food groups children need every day. Getting there is not complicated. It mostly comes down to having the right containers so the food actually travels safely.

Conclusion

Sophia packed the b.box lunch box every morning for six weeks before she realised the silicone tray existed. Her daughter had been eating around the crackers the entire time. The food flask came next, after leftover pasta started going in the bin. Then the juice box, after the third lost drink bottle lid in a fortnight.

Nobody tells you this stuff at the shop. Shop the full b.box accessories range at BentoBliss.

Frequently Asked Questions

Will the b.box silicone bento tray fit both the regular and large b.box lunchbox?

The silicone bento tray is designed specifically for the b.box lunchbox range. Check the product page to confirm which version fits your box. BentoBliss stocks the tray for both the standard lunchbox and the mini lunchbox as separate products, so it is worth picking the right one for your specific box rather than assuming they are interchangeable.

Will a food flask actually keep soup warm until 1 pm for lunch if school starts at 8:30 am?

Yes, provided you pre-heat the flask first. Fill it with boiling water for 2 minutes, then tip it out and add your hot food. The Avanti YumYum 300ml and the Oasis Food Flask 230ml both maintain safe food temperatures well past the four-hour mark when pre-heated correctly. Packing tightly rather than half-full also helps retain heat longer.

Does the Oasis Juice Box leak inside a school bag?

The Oasis Tritan Juice Box uses a straw lid that seals when not in use. Kept upright in a lunch bag, it does not leak. Some parents add it to an insulated bag with the lunchbox rather than leaving it loose in a backpack, which eliminates any concern about orientation during the commute.

Can the b.box silicone tray go in the dishwasher?

Yes. Silicone is fully dishwasher-safe and does not warp or degrade with repeated washing. Pop it on the top rack. The flexibility of silicone also means you can turn it inside out to rinse out any stubborn bits before loading it.

What food flask size should I pick for a kindy kid versus a primary schooler?

The Oasis Insulated Food Flask 230ml is the right fit for kindy and early primary. It is lighter, easier for small hands to manage, and sized for smaller portions. The Avanti YumYum 300ml is suitable for primary school kids who need a more substantial warm meal. If your child is between stages, the 300ml is the better long-term investment since it stays useful for several school years.