1. A feedback system for controlling texture attribute of a food product in a continuous manufacturing process, wherein said system comprises: a food pre-processing unit; a food processing unit downstream from said food pre-processing unit; a texture measuring tool positioned downstream from said food processing unit, said texture measuring tool further comprising: a housing; a laser generator attached to said housing; an acoustic capturing device proximally located to said housing; a data processing unit in communication with at least said acoustic capturing device; wherein a laser from said laser generator is directed to non-invasively strike an exterior surface of said food product after its output from said food processing unit, the striking heating the struck surface sufficient to cause rapid thermal expansion of the struck exterior surface thereby producing an acoustic signal to be detected by said acoustic capturing device; wherein said data processing unit is configured to non-invasively and quantitatively measure said texture attribute of said output food product based on input from said acoustic capturing device generated based on said detected acoustic signal; and a controller, said controller controlling a plurality of input parameters to said food processing unit and said food pre-processing unit based on input from said texture measuring tool.