insulated box (M) 300 x 300 x 300 mm - 100% recyclable cardboard

Insulated box (M) — 300 × 300 × 300 mm, 100% recyclable corrugated cardboard. The medium-sized outer box of the TempGuard cooling system. Combine it with separate TempGuard insulation sheets (M) to create a complete, fully recyclable cooling box — a plastic-free alternative to EPS and Styrofoam.

Please note: this is the box, not the insulation

The insulated box (M) is the corrugated cardboard outer box. The insulating performance comes from the TempGuard insulation sheets (M), which you order separately and place inside the box. Together they form a cooling box; on its own, the box is used as a standard shipping box. If you prefer a box that insulates immediately without separate sheets, take a look at the Eco Coolbox or the honeycomb insulated box.

Why choose a cardboard insulated box with separate sheets?

This system is designed for companies that want compact storage and sustainable packaging. The box is delivered flat, and the sheets are stored flat — you only add the insulation during packing. This saves considerable storage space and transport volume compared with pre-formed EPS boxes. After use, both the box and the sheets can simply go with the waste paper, without a separate collection point. The insulation value of the combination is comparable to EPS (Styrofoam/Tempex).

Specifications

• Dimensions (L × W × H): 300 × 300 × 300 mm
• Material: 100% recyclable corrugated cardboard
• Insulation: separate TempGuard insulation sheets (M), available separately
• Exterior: flat and fully printable (brand, logo, usage instructions)
• Delivery: supplied flat, space-saving in storage

How to assemble a complete cooling box

1. Set up the box and insert two TempGuard insulation sheets (M), so the base and walls are lined.
2. Place your product inside and add gel packs — gel packs on top of the product, because cold air sinks.
3. Fold the sheets closed and seal the box. Pack as tightly as possible: less empty space means a more stable temperature.

What is the M size suitable for?

The M is the versatile mid-size option for most chilled shipments: medium-sized parcels of fresh fish or meat, dairy, meal boxes, chocolate and pharmaceutical products. With the right gel packs, the contents remain at temperature for up to 48 hours, from chilled (2–8 °C) to frozen — without refrigerated transport.

Benefit for e-commerce and fresh food brands

More and more online retailers and brands are being assessed on sustainability. With this box, you package fully plastic-free and recyclable, with a clean presentation on your customer’s doorstep. The flat exterior is fully printable. Unsure which size fits your product and transport duration? Our specialists will be happy to advise you.