COFFEE MACHINE FOR MAKING AND DISPENSING ESPRESSO, ESPRESSO MACHINE WATER ELECTROLYTE COMPOSITION CONTROL METHOD AND ESPRESSO MACHINE WATER ELECTROLYTE COMPOSITION CONTROL SYSTEM Russian patent published in 2025 - IPC A47J31/44 

FIELD: beverage preparation devices.

SUBSTANCE: group of inventions relates to beverage preparation machines. Device comprises a water source, a dispensing group configured to interact with a portafilter equipped with a filter basket with a coffee powder washer, system for controlling electrolyte composition of water to be used for making espresso coffee. Device is configured to supply water under pressure to said washer of coffee powder for dispensing espresso coffee. System comprises a device for demineralising water and a device for adding at least one inorganic salt to demineralised water, providing one or more aqueous salt solutions prepared from demineralised water.

EFFECT: providing regulation of organoleptic characteristics of espresso coffee, reducing corrosion and wear of coffee machine elements.

13 cl, 8 dwg, 5 tbl