It's good to know that the numbers attached to beers in the Czech Republic refer not to alcohol content but to a 'degrees' figure, which represents the amount of malt extract used in the brewing process. A higher degree figure generally means a fuller flavour, and it always results in a stronger brew. The alcohol percentage works out at about a little more than one-third of the stated degree: ten-degree beers are generally at around four per cent alcohol, with 12-degree beers nearer five per cent. Most often you come across draught beer which is popularly called "desítka" (ten) — it contains up to 4 % alcohol and also "lager" type beer called "dvanáctka" (twelve) which contains approximately 5.5 % alcohol. Occasionally, you will find special beers with higher alcohol content.