Electrochemical reprocessing of metals using eutectic solvents (ESs) is a promising approach due to its availability, cost-effectiveness, ease of preparation, and environmental benefits. However, a significant challenge associated with ESs is their tendency to absorb moisture from the atmosphere, which can impede and alter electrochemical recovery processes. Here, we examine a novel electrochemical method for quantifying the amount of water content absorbed by a commonly used ES formed from choline chloride and ethylene glycol (ChCl:2EG).