About

Initially supported by a group of SWR retailers, the Accord has since welcomed participants from across the value chain – from production to retail. This expansion underscores the importance of addressing glass bottle weight throughout the entire supply chain.

Participants commit to reducing the average weight of their 750ml still wine bottles to below 420g by the end of 2026. The Accord was based on in-depth research undertaken by SWR in 2022-23. That paper is available for download in the resources section below.

Why it matters

Glass bottles significantly contribute to wine’s carbon footprint. Our research indicates that roughly half of the carbon impact of wine can be attributed to the bottle. By reducing bottle weight, we can substantially lower this impact. Our findings also demonstrate that bottle weight has little to no meaningful influence on consumer purchasing decisions—challenging a common misconception that favours heavier bottles. Light-weighting wine bottles therefore presents a clear opportunity to reduce emissions across the industry.

Our goals

Remove Heavy Bottles
Eliminate the heaviest bottles as quickly as possible

Light-weighting Own Brands
Reduce the weight of own-brand wine bottles by the end of 2025.

Collaborate for Change
Work with the entire supply chain to implement these changes.

Our approach

Each BWA member will introduce phased reductions and report progress every six months. SWR will also support producers and bottlers in accessing lighter bottles and adapting their processes. Challenges will be addressed collectively to ensure effective change.

Benefits to participants

Demonstrate measurable action

on reducing the single largest component of wine’s carbon footprint.

Visibility and publicity

through SWR communications, showcasing participants’ leadership in sustainability efforts.

Access to data

on lightweight bottle availability across regions to streamline supply chain decisions.

Share best practices

and learn from peers on successful implementation of the Accord.

Regulatory compliance support

to meet current and future packaging and carbon footprint regulations.

Looking Ahead

Reducing bottle weight to below 420g is just the beginning. SWR will explore further reductions and additional measures to decrease the carbon impact of wine packaging, including lightweight sparkling wine bottles, alternative packaging, and bulk shipping.

Participants

Alko Oy

Systembolaget

Whole Foods Market

Naked Wines

Berry Bros. & Rudd

Lidl GB

Waitrose & Partners

Direct Wines

Virgin Wines

The Wine Society

Terra Vitis

AS Vinmonopolet

Tesco

Catena Institute of Wine

Viña Concha y Toro

Boutinot

Resources

Reports & documents

Access our comprehensive reports and official accord documents to understand the impact and progress of the Bottle Weight Accord:

Take action

Want to be part of this industry-leading commitment? Learn more about the Bottle Weight Accord or join us today by contacting info@swroundtable.org.