Electrolysis of water becomes extremely favorable above 1.23 volts, and is not something you want to subject most electrodes to. The closer you get to 1.23 volt

Electrolysis of water becomes extremely favorable above 1.23 volts, and is not something you want to subject most electrodes to. The closer you get to 1.23 volts the more and more likely it is for electrolysis to happen at a given current used to maintain the field they'd need. I'm not 100% on this given I don't want to buy the paper and am not an expert in this field, but have done a lot electrolysis related work on personal projects. edit: Also electroplating would probably become a concern as well depending on what exactly is in that brew.