peroxide on food that you are going to eat?
Are you doing this to remove dirt, germs, pesticides or bugs?
There are halachically acceptable ways to clean and check veggies and fruits, some don’t need any checking at all. There are books about what you have to do for what veggies/fruit. There are also bug-free versions of veggies out there for the most problematic (like broccoli). I think you may be going overboard.