275ml is half a pint, or one VERY LARGE glass, so, yes it is that big. That's over a third of a bottle of wine. UK standard measures are 125ml small, 175ml med

275ml is half a pint, or one VERY LARGE glass, so, yes it is that big. That's over a third of a bottle of wine. UK standard measures are 125ml small, 175ml medium, 250ml large. 175ml is a normal glass of wine and is 2.3 units, or 16 units a week. 23 units is 2 and a bit bottles of wine. You've got your units wrong. https://www.gov.uk/weights-measures-and-packaging-the-law/specified-quantities https://www.gov.uk/weights-measures-and-packaging-the-law/sp... http://www.nhs.uk/Livewell/alcohol/Pages/alcohol-units.aspx http://www.nhs.uk/Livewell/alcohol/Pages/alcohol-units.aspx