Mathematicians are a step closer to understanding what makes a perfect cup of coffee.
Through some complex calculations, they have shone a light on the processes governing how coffee is extracted from grains in a filter machine.
This could help drinkers optimise their cuppa by applying a more precise - and scientific - approach.
The work is published in the SIAM Journal on Applied Mathematics.
When it comes to coffee grains, size matters.
Read More (Paywalled, abstract only): Asymptotic Analysis of the Dominant Mechanisms in the Coffee Extraction Process DOI:10.1137/15M1036658
(Score: 1) by dr_barnowl on Wednesday December 07 2016, @08:30AM
I find an Aeropress, not using over hot water, and only letting it steep for 30 seconds eliminates most of the bitterness.
If you really want coffee that's not bitter, try cold-brew, or Black Blood of the Earth. Cold brew is too powerful for me though.