Portsmouth academic develops ‘perfect espresso’ formula

A team of mathematicians and physicists say they have the formula for consistently good coffee. …

Mathematicians and physicists might not be the first people you would think to consult about the perfect coffee.

But a team of researchers including Dr Jamie Foster, a mathematician at the University of Portsmouth, is challenging conventional espresso wisdom.

They have found that fewer coffee beans, ground more coarsely, are the key to a more consistent drink that is just as strong.

Reporter: Mike Apps