A team of mathematicians, physicists and materials experts from around the world have applied their combined brainpower to one of the most pressing questions of our times - how do you make the perfect espresso?
The latest research has come up with a mathematical model to determine the perfect end product, but the question is- can a good cup of coffee come down to a scientific equation or is it an art?
Coffee expert Elliott MacDonald- Briggs spoke to The AM Show.
Watch the video.