We are always open and available to conduct any testing required. Usually, we only treat surfaces for couple pulses, this will not influence the quality of the product, however, longer treatment might cause oxidation of the food. This would need to be tested and evaluated on a case by case basis – which we are always open to do. So, for the surface Pulsed Light has very good efficacy. For the product, if it’s opaque or has some color it’s not as good as the transparent thing. For example: three seconds (within 10 pulses) usually and with 2-inch distance we can get 2 to 4 log reduction, so it happens very quick. Of course, it’s still associated with other treatment parameters on the conveyor such as speed, that’s why we treat every case individually. We will first do the proof of concept here, then we will do the verification with customer in the real facility to see what is the optimized treatment condition. Sure, so usually here we will do the sample test for verification. We will do test on the sample to prove the concept and to see how good pulse light is on the sample. For example, for surface sanitization, to verify this at XENON, we will do the microbiology challenge test. So we get the sample and artificially inoculate bacteria or even mold on it, then we will expose it to Pulsed Light to see whether we can get the required log reduction, by determining how long we need the treatment to be and what is the distance and pulse rate to achieve this goal; then we will give recommendations for the treatment condition to the customer. On the customer side, they will need to do the validation in their facility or in their process line. This is usually the procedure for verification and validation.
