I know that are several acids that can be found in the kitchen, such as citric acid and vinegar.
However, I never heard of a base that can be used in the kitchen to raise the pH levels of any food. I am well aware that this mix would probably make a salt as a result. Something like hydrogen peroxide doesn't sound safe for food. So, my question is:
What are (if any) the bases that can be used on those acids and still be human-consumable?