Wort (/ˈwɜːrt/) is the liquid extracted from the mashing process during the brewing of beer or whisky. Wort contains the sugars, the most important being maltose and maltotriose, that will be fermented by the brewing yeast to produce alcohol. Wort also contains crucial amino acids to provide nitrogen to the yeast as well as more complex proteins contributing to beer head (froth) retention and flavour.
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Beer head in the context of Beer glassware
Beer glassware comprise vessels, today usually made of glass, designed or commonly used for serving and drinking beer. Styles of beer glasses vary in accord with national or regional traditions; legal or customary requirements regarding serving measures and fill lines; such practicalities as breakage avoidance in washing, stacking or storage; commercial promotion by breweries; artistic or cultural expression in folk art or as novelty items or usage in drinking games; or to complement, to enhance, or to otherwise affect a particular type of beer's temperature, appearance and aroma, as in the case of its head.Drinking vessels intended for beer are made from a variety of materials other than glass, including pottery, pewter, and wood.
In many countries, beer glasses are served placed on a paperboard beer mat, usually printed with brand advertising, in commercial settings.
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