International Standards Organisation or ’ISO’ wine glasses are recognised throughout the world as the standard design for wine tasting. The rounded bowl and tapering sides allow the wine to be swirled without spilling, and the relatively narrow rim helps contain the bouquet and enhances the appreciation.
21.5cl is the size most commonly used at wine tastings, but ’ISO’ wine glasses are also available in 12cl, 31cl, and 41cl sizes.