Hi, I work with potato produce products and prepared whole peeled potatoes as well.
We used to rinse with Sodium Hypochlorite for decontamination for the prepared potato products, but we moved to Tsunami 100 recently (it is slightly more expensive) but you will use less (only 60ml needed to obtain 30-80ppm) and remains consistent throughout the day as we test the concentration of this per batch to verify and the microbial kill is far more significant than using chlorine as we have validated this over trials also and summarised this.
The validation and trial work surrounding Tsunami100 (Ecolab chemical) is widely available on the internet if you search and seems to be popular, with the exception that it is costly, but if you calculate how much you require per day in comparison to using the chlorine and weigh up the pros (microbial reduction) you can justify this higher cost. Do research the H&S aspects of using this chemical as it needs to be stored in a certain manner (ECOLAB will guide you once you purchase it and you will obtain the MSDS and Specs anyway) and ensure it is linked up to a dosatron to pump in the required amount into your process, so that staff do not need to manually handle the chemical.
I hope this is of some help to you? as it helps knowing other companies have trialled other chemicals and can give you real life feedback.