What different drying techniques are there?
Ventilation drying method
The ventilation drying method is an active drying method. After the drying cycle, the dishwasher door opens slightly. This ensures that the last bits of moisture evaporate. With this method, the dishwasher saves time, so your dishes dry faster. Plastic cutlery dries better than with standard condenser drying technology. Dishwashers from AEG, Miele, and Zanussi use the ventilation drying method.
Zeolite is an active drying method. There are special zeolite granules at the bottom of the dishwasher. If the water washes away after washing, it ends up with the grains which then heat up. The heat that comes from this goes back to the interior so your dishes dry. The zeolite granules repair themselves after every wash and you never have to replace them. This method is very energy-efficient and it's only available with A+++ dishwashers from Bosch and Siemens.
Condenser drying technology
Most dishwashers use the standard condenser drying technology. During the drying process, the warm, moist air condenses on the cool walls of the dishwasher. The appliance then pumps out the water. Drying this way works very well for pottery, glass, and steel, but not plastic.