According to The Guardian, the bottles are made of wood-based fiber shell and plant-based polyethylene furanoate (PEF) polymer lining.

The company will send 8.000 samples for customers in eight European markets, including UK, Poland and France.

The Danish beermaker said that the new bottles can retain the same "taste and fizziness" as glass bottles and they can even keep the beer cooler for a longer amount of time.

Everything about the bottle is bio except for its cap, and Carlsberg might have a solution for that as well, as a sustainable plastic cap might be coming in 2023.

Photo source: Carlsberg

Stéphane Munch, vice-president for group development at Carlsberg, said that "identifying and producing PEF as a competent functional barrier for beer has been one of our greatest challenges, so getting good test results, collaborating with suppliers and seeing the bottles being filled on the line is a great achievement."

Officials claim that the company will continue to work with its partners Avantium and Paboco in order to develop new beer packaging.

The wood-based sustainable bottle was first announced in 2019 and Carlsberg worked on its design since 2015.

The Danish company also plans to make its own beer more sustainable, as it collaborates with barley and malt supplier Soufflet in order to use grains that are cultivated using fully organic and regenerative agricultural practices.