You’ve seen the small white box and wondered whether 3kg is big enough for what you need. So what fits in a 3kg styrofoam box? It’s the smallest standard size, and it’s often exactly right. Here’s what it holds, who it suits, and when to choose something bigger.
What is a 3kg styrofoam box?
It’s a compact white EPS (thermocol) box with a lid, made from food-grade foam. It carries around 3kg of product and keeps it cold with ice packs. See the full details of our 3kg styrofoam box with lid.
What fits in a 3kg styrofoam box?
The 3kg box is made for small, valuable or delicate loads:
- Medical: sample tubes, insulin pens, small vaccine batches and other cold medicine.
- Breast milk: a day’s expressed milk in bottles or bags, with ice packs.
- Food: a small portion of fish or meat, cheese, yoghurt or desserts.
- Drinks: a few cold bottles for the road or the office.
- Farm and vet use: vaccines and medicine for animal treatments on farm visits.
- Online orders: small chilled deliveries such as cakes, chocolate or cosmetics.
Leave space for ice packs. Product plus ice is what should fill the box.
Who is the 3kg box for?
Anyone carrying a small load that must stay cold: clinic staff, lab couriers, working mothers, vets, small food businesses and online sellers. If you carry it in one hand and the contents matter, the 3kg box is for you. Clinics and labs moving larger batches can also look at our medical and vaccine styrofoam boxes.
Why use a styrofoam box instead of a bag or plastic tin?
Foam walls hold cold far better than a cooler bag or a plastic container. The box is also light, cheap enough to give away with an order, and food-grade, so it’s safe for milk, food and medicine.
How to pack a 3kg box to stay cold longest
- Chill the contents in a fridge first.
- Put an ice pack at the bottom.
- Add your items, then another ice pack on top.
- Fill any gaps with a cloth or paper, and close the lid firmly.
- Keep the box out of the sun, such as on a car floor rather than the seat.
When is a 3kg box too small?
Choose a bigger size if:
- You need more than one layer of products plus ice.
- You’re delivering to several customers on one trip.
- You’re carrying fish or meat for sale rather than a single portion.
In those cases, the 6kg styrofoam box is the next step up. See our 3kg vs 6kg comparison or the full styrofoam box sizes guide.
Where to buy a 3kg styrofoam box
Bioflex Insulation Limited, Industrial Area, Nairobi. We’re open Monday to Saturday, 8 am to 5 pm, and deliver across Kenya and East Africa. Single boxes and bulk orders are both welcome.
[WhatsApp us for a quote: 0722664867
With the lid kept closed and the box out of the sun, ice packs keep milk cold for hours. For long days, swap in fresh ice packs if you can.
Yes. It’s made from food-grade EPS and is widely used for samples and medicine.
Yes. Wipe it with mild soap and water and let it dry with the lid off.
