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A new study published today in the scientific journal Addiction found that households in the UK consumed around 6.5% less wine when drinking from smaller glasses (290ml) than from larger glasses (350ml).
This randomized controlled trial recruited 260 UK households from the general population who consumed at least two 75cl bottles of wine per week. During two 14-day intervention periods, households were asked to buy a pre-defined amount of wine to drink at home in 75 cl or 37.5 cl bottles, in random order. They were also randomized to receive smaller (290ml) or larger (350ml) glasses to drink from. The volume of wine consumed at the end of each 14-day intervention period was measured using photographs of purchased bottles weighed on scales provided. Using smaller glasses reduced the amount of wine drunk by around 6.5% (253ml per fortnight) – although there is some uncertainty around this effect. Drinking from smaller bottles reduced the amount of wine drunk by 3.6% (146ml per fortnight), but there is greater uncertainty around this effect.
Wine is the most consumed alcoholic beverage in Europe, and most of it is consumed at home rather than in bars, restaurants or pubs. The use of larger glasses is already known to increase the volume of wine sold in restaurants and the size of wine glasses in general has increased significantly over the past three decades. If the effects of wine glass size on consumption prove to be reliable, with lasting effects over time, reducing the size of wine glasses used in households could contribute to consumption reduction policies. These policies could include pricing glasses based on capacity to increase demand for smaller glasses and regulating glass sizes in bars, restaurants and other licensed premises to help change social norms about what constitutes a glass size acceptable for both exterior and interior use. residence.
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This article is free to read for one month after publication from the Wiley Online Library: https://onlinelibrary.wiley.com/doi/10.1111/add.16005 or by contacting Jean O’Reilly, Editorial Manager, Addiction[email protected]
To speak with lead author Dr. Eleni Mantzari please contact her at Cambridge University by email ([email protected]) or telephone (07778149432).
Full quote from the article: Mantzari E, Ventsel M, Ferrar J, Pilling MA, Hollands GJ, Marteau TM (2022) Impact of wine bottle and glass size on home wine consumption: an within- and between-household randomized controlled trial . Addiction:doi:10.1111/add.16005
Funding: Collaborative Award in Science from the Wellcome Trust (Behaviour Change by Design: 206853/Z/17/Z) awarded to Theresa Marteau, Paul Fletcher, Gareth Hollands, Marcus Munafò.
Declaration of interests: All authors have completed the Unified Competing Interest Form (available upon request from the corresponding author) and declare: no support from any organization for the submitted work; no financial relationship with organizations that may have an interest in work submitted within the previous three years; and no other relationships or activities that may appear to have influenced the work submitted.
Addiction is a monthly international scientific journal publishing peer-reviewed research reports on alcohol, substances, tobacco and gambling, as well as editorials and other discussion articles. Property of the Society for the Study of Addiction, it has been in continuous publication since 1884.
Randomized controlled/clinical trial
The title of the article
Impact of wine bottle and glass size on home wine consumption: an intra- and inter-household randomized controlled trial
Publication date of articles
August 18, 2022
Conflict of Interest Statement
All authors have completed the Unified Competing Interest Form (available upon request from the corresponding author) and declare: no support from any organization for the submitted work; no financial relationship with organizations that may have an interest in work submitted within the previous three years; and no other relationships or activities that may appear to have influenced the work submitted.
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