The debate between cardboard and metal is present in many industrial sectors. Cardboard is often perceived as an economical and sustainable solution, but when we analyse performance, protection, and real behaviour in demanding logistics environments, the differences become evident. At Boixadós, with extensive experience in the metal packaging sector, we present a comparison based on real usage and cost criteria.

Cardboard usually has a lower unit price and can be attractive for single-use or occasional formats. However, this initial saving tends to decrease when we consider its lower resistance, the risk of deformation, and the frequent need for additional reinforcements. In sectors that work with solid products sensitive to humidity and airtightness —such as soluble products, dietary supplements, coffee, or nutritional supplementation— these limitations become even more evident. Cardboard is a porous material, which favours the absorption of moisture from both the environment and the product itself, compromising its preservation. Metal, on the other hand, maintains complete stability and protects the content reliably from production to the final consumer.

In terms of sustainability, this point is particularly relevant: while multilayer cardboard has very limited recyclability, metal is 100% recyclable as many times as needed and always retains its properties. Its high recovery rates make it a truly circular material, with a more controlled environmental impact in the long term.

Regarding logistics and transport, stability plays an important role. Cardboard may require additional protection and take up more usable volume in certain formats. Metal, being more robust and easy to stack, optimises space and reduces risks during transport and storage, contributing to a more efficient logistics chain.

In terms of image, metal packaging conveys quality and durability, reinforces product value, and allows for high-precision decorative finishes. Although cardboard is versatile in printing, it is often perceived as less robust and less suitable for medium- and high-range products, especially when premium formats or differentiated presentation are required.

In conclusion, cardboard can be a valid option for very specific and low value-added uses, but for high-quality products where good presentation, resistance, protection, logistics efficiency, and real sustainability are required, metal remains the best solution.