Jute in Fresh Food Shipping: From Coffee Sack to Cool Box

Jute is one of the oldest packaging materials in the world. The fiber has been cultivated and processed in Bengal for centuries. However, its global rise as a packaging material began in the 19th century, when industrialization turned the regionally used plant fiber into a mass material for global trade. Stable jute sacks were used to transport numerous commodities, from cotton, coffee and salt to fertilizer.

For some time now, jute has been experiencing a renaissance in the packaging sector. The reason is not only nostalgia, but above all sustainability: jute is biobased, biodegradable and can be used, among other things, as an alternative to plastic carrier bags, gift packaging, agricultural packaging or reusable bags. Kompackt61 has expanded the field of application for the natural fiber to include insulated packaging through a special packaging design. Since the beginning of 2026, the company has been part of Ecocool.

Temperature-controlled shipping places special demands on packaging. Packaging must protect products not only from heat or cold, but also from mechanical stress during transport. Jute is particularly well suited as a base material for this purpose.

The material has a special structure with cavities inside the fiber, as Ecocool Managing Director Dr. Florian Siedenburg explains: “This allows our jute packaging to achieve insulating properties comparable to EPS (Styrofoam) boxes of the same thickness. In addition, jute fleece also offers good shock-absorbing properties, which means that, alongside temperature insulation, it also provides a high level of mechanical protection against physical stress along the transport route.”

An important sustainability aspect lies in the origin of the material. According to Ecocool, the company does not use newly produced jute, but recycled sacks from coffee imports. “In this respect, the material is not only renewable and biodegradable, but also consists of material that has already been used, making it particularly sustainable,” says Dr. Florian Siedenburg. The cover is also made of recycled cotton.

In the JUTEBox version, the insulating fleece is placed in an outer carton made of FSC-certified and fully recyclable corrugated board. The JUTEBag is fully biodegradable and can be disposed of in the organic waste bin, on a household compost heap or in residual waste.

Ecocool relies on its own tests when designing the packaging. Dr. Florian Siedenburg says: “We test all our packaging in our company’s own climate chambers. In doing so, we use very strict temperature profiles to simulate worst-case scenarios during distribution and to determine suitable coolant configurations. On request, we also carry out specific qualifications for our customers, defined by the customer’s QA department, which enable audit-proof documentation for the customer.”

According to Ecocool, the JUTEBox and JUTEBag solutions are suitable for a broad range of applications because of their insulating performance. They could be used, among other things, for shipping fresh and frozen food, temperature-sensitive pharmaceuticals in ranges such as ≤ −20 °C, 2–8 °C, 2–25 °C or 15–25 °C, and chilled pet food such as BARF. Other temperature-sensitive products, such as sensitive adhesives or resins, can also be shipped safely and temperature-controlled in the JUTEBox, according to Ecocool.

Packaging Process Remains Largely Unchanged

For users, the material question is not the only decisive factor; it is also important whether new packaging solutions can be integrated into existing processes. As Dr. Siedenburg explains, no adjustments, or only minimal adjustments, are required: “As standard, customers only need to set up the outer carton of the JUTEBox and insert the insulating liners. This can be done in just a few simple steps.” On request, the box can also be delivered preassembled.

Ecocool also offers flexibility in packaging sizes. Customers can either work with standard sizes or retain existing carton formats. From an order quantity of 500 units, custom-made jute insulating inserts are available. This allows established packaging processes to be maintained while integrating more sustainable insulation solutions.