Pint glass small pits which aid in nucleation, allowing the gas within it to be released more easily, thus preserving the head. Without the aid of these pits a regular pint glass will keep a head for only 3 or 4 minutes before appearing 'flat'. The markings come in a variety of styles ranging from a simple circular or square hatched pattern to more complicated branding messages. Pint glass collecting is an increasingly popular way for individuals to commemorate their visits to popular tourist destinations, most notably to microbreweries or sports arenas. These destinations often sell pint glasses adorned with their logos,
Pint 16 ounce American traditional pint. Under the Canada Weights and Measures Act, if asked for a "pint of beer", businesses should serve customers 0.568 litres of beer with an accuracy of 0.5%, and if asked for a "pinte de bière" they should serve them 1.136 litres. The Imperial system of measurement is no longer taught in Canadian schools, which leads to confusion when customers ask how big a drinking establishment's pints are. Servers and even managers may not know. To avoid legal issues, many drinking establishments are moving away from using the term "pint" and are selling "glasses" or "sleeves"