Brewing - emissions and waste
Investigate the possibility of "lightweighting" bottles by redesign
- narrow neck press and blow (NNPB) in glass bottle manufacture
- enables more even wall thickness
Lighter cans may be appropriate
Work with suppliers to maximise recycling efficiency
Lightweighting of secondary and tertiary packages
Recycle packaging waste
- minimise waste by maximising packaging line efficiency
- minimising processing faults
Case study: Diageo lightweight bottle caps
Diageo lightweighted their bottle caps from 2.1 g to 2.0 g without a loss in product quality of freshness. This seemingly small change mulitplied across Diageo's whole business has resulted in a reduction of 100 tonnes of steel and environmental benefits.
Diageo Sustainability and Responsibility Report 2011: Small change, big difference. Published Online.