Food oral processing is the first step in the digestive process which prepares food forswallowing and digestion. The process only lasts a few seconds, yet it determines our complete perception of texture, taste and aroma of the product we are eating. This oral processing is an intricate combination ofvoluntary and involuntary actions, and it involves complex flow geometry, mass transport offluids and gases and signal processing and feedback from the brain. Any attempt of inserting measuring devices in the mouth will fail because the complete oral processing will be influenced. We have developed a remote, non-invasive determination technique using magnetic sensing of magnetic nanoparticles iron oxide particles. A small amount of these particles senses their surrounding texture through their rotation and the nano-viscoelasticity can therefore be picked up without disturbing the oral processing.