Machine (10) for forming a sheet of fresh pasta, comprising: - a supporting structure (10.1), supporting at least two cylindrical sheeter rollers (121; 12), configured to form, from a shapable food dough, a sheet (S) of fresh pasta, - wherein at least one roller (121) of said at least two sheeter rollers (121; 12) comprises a first cylindrical
helical slot (11.3) shaped so as to provide, in at least one part of the outer lateral surface (11.1) of said at least one roller (121), a plurality of contiguous grooves, and - wherein, during forming of the sheet of pasta (S), said at least one roller (121) cuts, in said corresponding part of a surface of the sheet of pasta (S), a plurality of linear slots according to a continuous and regular
surface pattern. According to the invention, said at least one roller (121) comprises, in said at least one part of the outer lateral surface (11.1), a second cylindrical
helical slot (120.1) and a third cylindrical
helical slot (121.1), - wherein said second cylindrical helical slot (120.1) and said third cylindrical helical slot (121.1) are configured to
cut - during forming of the sheet of pasta (5) -, in a corresponding part of a surface of the sheet of pasta (5) having said continuous and regular
surface pattern, respective slots having different arrangement and course with respect to the slots of said pattern, and to produce, in combination with this pattern, an uneven arrangement of troughs and crests, making said corresponding part of a surface of the sheet of pasta (5) irregularly rough on the whole of its extension. The Invention also refers to said sheeter roller (121).