Does wine glass size influence sales for on-site consumption? A multiple treatment reversal design

Abstract Background Wine glass size can influence both perceptions of portion size and the amount poured, but its impact upon purchasing and consumption is unknown. This study aimed to examine the impact of wine glass size on wine sales for on-site consumption, keeping portion size constant. Methods...

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Main Authors: Rachel Pechey, Dominique-Laurent Couturier, Gareth J. Hollands, Eleni Mantzari, Marcus R. Munafò, Theresa M. Marteau
Format: Article
Language:English
Published: BMC 2016-06-01
Series:BMC Public Health
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12889-016-3068-z
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author Rachel Pechey
Dominique-Laurent Couturier
Gareth J. Hollands
Eleni Mantzari
Marcus R. Munafò
Theresa M. Marteau
author_facet Rachel Pechey
Dominique-Laurent Couturier
Gareth J. Hollands
Eleni Mantzari
Marcus R. Munafò
Theresa M. Marteau
author_sort Rachel Pechey
collection DOAJ
description Abstract Background Wine glass size can influence both perceptions of portion size and the amount poured, but its impact upon purchasing and consumption is unknown. This study aimed to examine the impact of wine glass size on wine sales for on-site consumption, keeping portion size constant. Methods In one establishment (with separate bar and restaurant areas) in Cambridge, England, wine glass size (Standard; Larger; Smaller) was changed over eight fortnightly periods. The bar and restaurant differ in wine sales by the glass vs. by the bottle (93 % vs. 63 % by the glass respectively). Results Daily wine volume purchased was 9.4 % (95 % CI: 1.9, 17.5) higher when sold in larger compared to standard-sized glasses. This effect seemed principally driven by sales in the bar area (bar: 14.4 % [3.3, 26.7]; restaurant: 8.2 % [−2.5, 20.1]). Findings were inconclusive as to whether sales were different with smaller vs. standard-sized glasses. Conclusions The size of glasses in which wine is sold, keeping the portion size constant, can affect consumption, with larger glasses increasing consumption. The hypothesised mechanisms for these differential effects need to be tested in a replication study. If replicated, policy implications could include considering glass size amongst alcohol licensing requirements. Trial registration ISRCTN registry: ISRCTN12018175 . Registered 12th May 2015.
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spelling doaj.art-967b5aa902b14b4d87537c038e31bad42022-12-22T03:51:39ZengBMCBMC Public Health1471-24582016-06-011611610.1186/s12889-016-3068-zDoes wine glass size influence sales for on-site consumption? A multiple treatment reversal designRachel Pechey0Dominique-Laurent Couturier1Gareth J. Hollands2Eleni Mantzari3Marcus R. Munafò4Theresa M. Marteau5Behaviour and Health Research Unit, University of CambridgeBehaviour and Health Research Unit, University of CambridgeBehaviour and Health Research Unit, University of CambridgeBehaviour and Health Research Unit, University of CambridgeMRC Integrative Epidemiology Unit (IEU), UK Centre for Tobacco and Alcohol Studies, School of Experimental Psychology, University of BristolBehaviour and Health Research Unit, University of CambridgeAbstract Background Wine glass size can influence both perceptions of portion size and the amount poured, but its impact upon purchasing and consumption is unknown. This study aimed to examine the impact of wine glass size on wine sales for on-site consumption, keeping portion size constant. Methods In one establishment (with separate bar and restaurant areas) in Cambridge, England, wine glass size (Standard; Larger; Smaller) was changed over eight fortnightly periods. The bar and restaurant differ in wine sales by the glass vs. by the bottle (93 % vs. 63 % by the glass respectively). Results Daily wine volume purchased was 9.4 % (95 % CI: 1.9, 17.5) higher when sold in larger compared to standard-sized glasses. This effect seemed principally driven by sales in the bar area (bar: 14.4 % [3.3, 26.7]; restaurant: 8.2 % [−2.5, 20.1]). Findings were inconclusive as to whether sales were different with smaller vs. standard-sized glasses. Conclusions The size of glasses in which wine is sold, keeping the portion size constant, can affect consumption, with larger glasses increasing consumption. The hypothesised mechanisms for these differential effects need to be tested in a replication study. If replicated, policy implications could include considering glass size amongst alcohol licensing requirements. Trial registration ISRCTN registry: ISRCTN12018175 . Registered 12th May 2015.http://link.springer.com/article/10.1186/s12889-016-3068-zAlcoholGlass sizeSalesChoice architecture
spellingShingle Rachel Pechey
Dominique-Laurent Couturier
Gareth J. Hollands
Eleni Mantzari
Marcus R. Munafò
Theresa M. Marteau
Does wine glass size influence sales for on-site consumption? A multiple treatment reversal design
BMC Public Health
Alcohol
Glass size
Sales
Choice architecture
title Does wine glass size influence sales for on-site consumption? A multiple treatment reversal design
title_full Does wine glass size influence sales for on-site consumption? A multiple treatment reversal design
title_fullStr Does wine glass size influence sales for on-site consumption? A multiple treatment reversal design
title_full_unstemmed Does wine glass size influence sales for on-site consumption? A multiple treatment reversal design
title_short Does wine glass size influence sales for on-site consumption? A multiple treatment reversal design
title_sort does wine glass size influence sales for on site consumption a multiple treatment reversal design
topic Alcohol
Glass size
Sales
Choice architecture
url http://link.springer.com/article/10.1186/s12889-016-3068-z
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