Thank you BioFarmer93. I was supposing that but now you have confirmed.
Do you think that cooling the electrolyte will reduce the amount of caustic steam, or is it created anyway due the wrong voltage between the plates regardless the electrolyte temperature?
I am designing my own electrolyzer (almost finished the design and started the procurement of some materials) and my main target is fighting against the steam. I have approached the issue with a water pump and electrolyte cooling by contact with another liquid, using a heat exchanger.
If the steam is created anyway regardless the temperature, I will drop my project in this sense, but if the steam is created only when the electrolyte is hotter than 55ºC (131ºF), which was my initial assumption, my design might work very well, as the electrolyte will be always cooler than that temp.
Once again, thank you very much for your support.