Smart Graph is a decision-making aid that allows the winemaker to understand and optimise the pressing. It displays a diagnosis to be made in real time on the press screen, or afterwards using Smart Graph software on a PC. Analysis of the curves helps the winemaker to analyse the problems of filling and clogging, and therefore to take steps to optimise the various pressing phases (filling, drainage, pressing, and so on). This has a direct impact on the quality of the wines (solids (bourbes) rate, rapid extraction of juices = limits oxidation) and decisions about bringing in the harvest.