Method for wrapping hydroscopic food products

A method for wrapping hygroscopic products comprising a step of feeding a succession of products and a step of wrapping each product of the succession in a respective sheet of wrapping material defining a wrapper for the product;

• the wrapping step comprises folding a sheet of wrapping material around at least part of a respective product, in particular the sheet of wrapping material being folded into a U shape around the respective product, and sealing to each other at least two edges of the sheet of wrapping material along a first, longitudinal sealing line defining a tubular body in which the product is disposed and having a first and a second open end;
• the wrapping step comprises sealing at least two portions of the tubular body along a second and a third sealing line transverse to the first longitudinal sealing line, thereby enclosing the product in the wrapper;
• the method wherein
• the wrapping step comprises a step of creating a vacuum in the tubular body before the step of sealing the portions of the tubular body along at least one between the second and the third sealing line;
• the step of creating a vacuum in the tubular body following the step of sealing the portion of the tubular body along the third sealing line and preceding the step of sealing the portion of the tubular body along the second sealing lined.