A wheat beer glass is a glass that is used to serve wheat beer, known also as Weizenbier or Weißbier. The German glass generally holds 0.5 litres with room for foam or "head". It is much taller than a pint glass, and starts out very skinny before growing slightly at the top. In other countries such as Belgium, the glass may be 0.25 litres or 0.33 litres.