Do you want to limit alcohol intake? Change your cup!

For those who want to change the amount of alcohol consumed in a day, they must first change their glass! Having alcohol from a smaller glass can help reduce consumption greatly, says one study. In a recent study, it was discovered that when restaurants served wine in 370 ml glasses instead of 300 ml, they sold more wine and tended to sell less when they used 250 ml glasses.

The research published in the Addiction magazine suggested that serving wine in larger wine glasses, maintaining the same measure, led to a significant increase in the amount of wine sold. Pouring wine from a bottle or a jug, as with most wines sold in restaurants, allows people to pour more than a standard serving size, and this effect can increase with the size of the glass and bottle said the first author of the study. Mark Pilling of the University of Cambridge in the United Kingdom.

If these larger portions are still perceived as 'a glass', then we would expect people to buy and consume more wine with larger glasses, Pilling added.

To provide a solid estimate of the effect of wine glass size on sales, a proxy for consumption, the research team conducted a 'megaanalysis' that gathered all of its previously published datasets from studies conducted between 2015 and 2018 in Cambridge bars and restaurants.

The team used 300 ml glasses as a reference level to compare the differences in consumption. In restaurants, when the glass size increased to 370 ml, wine sales increased by 7.3 percent, according to the study.

The reduction of the glass size to 250 ml led to a 9.6 percent drop, although the confidence intervals (the range of values ​​within which researchers can be quite certain of their true value) make this figure uncertain. Interestingly, increasing the size of the glass to 450 ml made no difference compared to the use of 300 ml glasses, the researchers said. When smaller 250 ml glasses are available, they may also look similar to 300 ml glasses, but they result in a smaller amount of wine being poured, Pilling said.

In contrast, very large glasses, such as 450 ml glasses, are obviously larger, so drinkers may have taken conscious measures to reduce the amount they drink, such as drinking more slowly or pouring more cautiously, Pilling added.

The researchers also found internal patterns similar to those reported in previous studies, namely lower wine sales on warmer days and much higher sales on Fridays and Saturdays than Mondays.

While the research was conducted specifically on wine drinkers, it can also be applied to other people who drink different varieties of alcohol.

The researchers found no significant differences in wine sales by glass size in bars, in contrast to the team's previous study. This shows the importance of replicating research to increase our ability to detect the effects of wine glass size. According to the study, when combined with data from other experiments, the apparent effect on the bars disappeared. (With IANS tickets)

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