Hochwald & SIG Terra Alu‑free – a breakthrough in aseptic packaging

Case study

Hochwald Foods GmbH

is one of Europe’s leading dairy processors. They commit themselves to producing in accordance with consumer protection, hygiene, environmental protection and economic principles. As a food producer, they uphold the principle of sustainability.

Their challenge

Hochwald aimed to cut carbon emissions by at least 50% within 10 years. They needed packaging that maintains food safety, shelf life, and consumer convenience, while significantly lowering its environmental impact.

Solution

SIG provided SIG Terra Alu‑free, an innovative aseptic carton material without aluminum layers – developed and industrialized by SIG.
Made with up to 82% FSC™‑certified renewable paperboard and ultra-thin protective polymers, it offers long shelf life without refrigeration.
Deployed across SIG MidiBloc and SIG SlimlineBloc UHT milk cartons, enabling a simplified two-material structure. Sustainability claims are clearly printed on pack.

Impact and benefits

CO₂e footprint

of packaging reduced by up to 34% compared with standard SIG cartons

3.6 billion liters

of food filled in SIG alu‑free cartons to date

1.7 billion liters

filled in SIG Terra materials in 2024 alone (+15.1% y‑o‑y)

comprising 9.3%

of SIG carton volume in Europe

“By 2032, we aim to reduce our Scope 1, 2 and 3 emissions by 50.4 % and our Scope 3 FLAG emission by 36.3 % compared to the 2022 reporting year.”

Volker Kölsch

Head of Procurement, Hochwald

“SIG Terra Alu‑free solutions set a new industry benchmark – sustainability without compromising convenience… By 2030, we aim for full‑barrier cartons with at least 90% paper content.”

José Matthijsse

President & General Manager Europe, SIG