Scientists discovered how to make the perfect head of beer

London: Drinkers will soon be cheering all the way to the bar as researchers have taken a big step forward in solving the puzzle of how to make the perfect head of the beer.

Beers drinkers might be able to enjoy a pint where the head lasts all the way to the bottom of the pint glass, according to the findings.

The study solved a long-standing mystery related to the lifetime of foams. The researchers from the University of Manchester in the UK used a nuclear reactor to fire neutrons at fluids to assess their foaming qualities.

“Just like when we see light reflecting off a shiny object and our brains help us identify it from its appearance, when neutrons reflect up off a liquid they are fired at we can use a computer to reveal crucial information about its surface,” said study lead researcher Richard Campbell.

“The difference is that the information is on a molecular level that we cannot see with our eyes,” Campbell added.

This could be useful for the development of a range of products that improve the creamy topping on a flat white coffee, the head on a pint of beer, shampoos we use every day, firefighting foams or even oil absorbent foams used to tackle environmental disasters, according to the research.

The research team studied mixtures containing surfactant - a compound that lowers surface tension - and a polymer - used in shampoos - to come up with a new way of understanding the samples that could help product developers formulate the ideal foam.

The technology could improve the formulation of detergents used in washing machines where the production of foams is undesirable. (IANS)

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