Beer brewer Grolsch said it would start using a lightweight bottle cap for all of its returnable bottles beginning October.

The new bottle caps are said to be 17% lighter, with 19% lesser steel, which would help Grolsch save over 100,000kg of steel per year, according to the firm.

The company added that the changeover will also reduce transport costs within the chain and lessen Grolsch's environmental impact, according to packagingnews.co.uk.

Grolsch said in statement that packaging protects the products and ensures that consumers perceive the brand in the desired way.

"For this reason, Grolsch is making efforts to design sustainable, lightweight packaging, to reuse bottles and to encourage recycling," it added.