Why do you add the disinfectant to water when mixing?

Adding disinfectant to water when mixing is primarily done to prevent foaming, which can lead to an incorrect mixing ratio. When disinfectants are added directly to water, they can cause the liquid to foam excessively. This foam can occupy space in the mixing container, making it difficult to accurately measure the amount of disinfectant used. If the foaming occurs, it may result in using too little disinfectant for the volume of water, which can compromise the effectiveness of the solution.

The proper mixing method ensures that the disinfectant can fully dissolve and achieve the intended concentration without any interference from excessive foam, allowing for effective sanitation practices in the barbershop setting. This is critical for maintaining hygiene and safety standards.