How a Dishwasher Works

How a dishwasher works

Dishwashing gives you great results while eliminating the hard work of washing by hand.

Pre-wash Cycle

Most machines have programs with a pre-wash cycle that sprays water onto the dishes to loosen soil particles on the dishes. After this dishwasher cycle, the water is generally pumped out and replaced with fresh water.

Main Wash Cycle

After pre-rinsing, the detergent dispenser opens once the main wash cycle has begun, allowing detergent to mix with the water. This solution gets pumped through the sprayer arms, and the force makes the arms rotate so that all items are reached. The water is heated gradually to temperatures between 125F-140F (50ºC and 70°C), depending on the chosen program.
After the main wash cycle, the water is pumped out.

Intermediate Rinsing Cycles

In the intermediate rinse cycle, residues remaining on the surface of the machine and/or the load are rinsed with cold water.

Final rinse/Drying Cycle

In the final rinse cycle, rinse aid is added to the rinsing water. The water is heated up to 140-160F (70°C). Then the water is removed and the load dried by the remaining heat.  Some machines also have a heating element to assist in the drying.