Liquid container for beverage dispensers and beverage dispenser comprising said container

A container for food safe liquids for beverage dispensers, comprising:

• a first end, or bottom wall;
• a second end, or neck, equipped with an outlet portion for liquid configured to be connected to a corresponding joining portion of a beverage dispenser;
• a tubular wall extending annularly along a central axis between the first and the second end;
• wherein the tubular wall extends along the central axis with a succession of ridges and grooves shaped to make the tubular wall collapsible along the central axis to reduce overall dimensions of the container, to compensate for negative pressure generated inside the container during dispensing of the liquid and preventing contact between the liquid and air outside the container;
• and
• wherein the tubular wall comprises a plurality of annular sectors positioned relative to one another in succession along the central axis, each having a different orientation relative to two adjacent sectors, wherein the orientation of each annular sector is measured in a plane of the annular sector, the plane at a right angle to the central axis;
• wherein the tubular wall has a profile having a plurality of first grooves and a corresponding plurality of second grooves alternating with each other along the central axis, wherein the first grooves have a depth, measured radially relative to the central axis, greater than that of the second grooves,
• and wherein each sector comprises two concave annular half parts connected and superposed to each other in such a way that their respective concavities are facing each other to define an M-shaped profile, with two ridges between which a second groove is interposed.