Dishwasher rinse aid ensures shiny dishes and extends the life of the appliance. It is composed of surfactants, acids and alcohol.
The cost of rinsing liquid is quite high (between €4 and €10) but there are economical and ecological cleaning products. You can also opt for large packaged products such as cans to reduce costs, but also reduce your waste. Some dishwasher models include an indicator light to let you know when it needs to be refilled. If you see blue streaks, this indicates excess fluid while white streaks indicate insufficient fluid.