Some embodiments are related to a portable or stationary system for determining the quality of processed food product. The system can be hand handled by a user, located on a production line or placed a laboratory. The system can include a Nuclear Magnetic Resonance (NMR) spectrometer and a controller. The controller can be configured to: receive an NMR spectrum of the processed food product from the NMR spectrometer, identify a first peak related to a first component of the processed food product from the received NMR spectrum and determine the quality of the processed food product based on the identification. The controller may further configured to control parameters of the production line based on the determined quality.