Ultra beer is defined as having a concentration of carbon dioxide higher than 3 parts per million.
It is also commonly referred to as ‘carbonated beer’ because it is brewed using a carbonated beer.
The most common form of ultra beer is a Belgian-style ale called Belgian Dubbel, which is made with a mixture of wheat and barley and is made by blending a mixture from two different kinds of beer.
Other ultra beers include a Russian Imperial Stout, which uses a mixture that is made from wheat and malted barley and a stout called Imperial Stout which is brewed with a mix of wheat, barley and hops.
The term ‘ultra’ is often used to describe a beer with a higher concentration of alcohol than 3 per cent.
The ‘ultralight’ style beer is made using a mixture made from one of the three varieties of wheat malt and is often called ‘boulevard beer’.
Ultra beer has also been labelled as ‘super pale ale’ by the brewers.
The UK has become the world’s biggest producer of ultra beers and the UK has a large craft beer market.
In 2011, Guinness became the first brewery in the world to be granted a ‘certificate of sustainability’ for its ultra beer production.
The certification was awarded by the European Commission in 2012, and Guinness has also won the ‘best craft beer’ accolade in the Guinness World Records.
‘We have to keep making beer that will be made by craft beer brewers who want to be sustainable,’ said Guinness chief executive officer Martin Gilbert.
‘It’s the only way that we can grow and sustain the business in the future.’
However, Guinness is not the only UK brewery to be awarded a certificate.
Other UK craft beer brands include Guinness, Great Northern and Goose Island.
‘The fact that Guinness is in the certificate shows the scale of our business and our commitment to sustainability,’ said Gary O’Leary, director of global sustainability at Guinness.
‘This is the first time in UK history that the company has been granted a certificate to help us stay relevant in the global beer market.’