Hi, Ode, Thanks for focusing in on the stabilization period. A lot of information may be lurking in these phenomena that can be measured without additional instrumentation. I'm thinking especially of the 1/e time constant of the stabilization process. It could be measured with just a record of conductivity or current (at constant voltage) versus clock time. This 1/e time should be a characteristic of the brew and the brewing process, not the vessel geometry or batch size. And it may change depending on if and when h2o2 is added, telling us something about the reaction kinetics between EIS and h2o2. Just a thought.
Best regards, Matthew