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A comparative image showing two green spherical objects in a dishwasher, one dry and smooth, the other wet with water droplets.

Zeolith® drying technology

Zeolith® Drying: an industry-first dish care innovation

Imagine coming home after a busy day, unloading your dishwasher, and everything from delicate champagne flutes to plastic snack boxes is dry, spotless, and ready to be used. No damp plastic containers, no steam clouds fogging up your kitchen, and no need to grab a tea towel for last-minute drying. With our patented Zeolith® drying technology, this is your new reality.
A man holding two handfuls of zeolite crystals with a Siemens dishwasher in the background.
Intelligent technology, inspired by natureThe magic of Zeolith® Drying technology lies in a remarkable natural mineral that absorbs moisture and converts it into heat energy. It requires no maintenance and lasts the entire lifetime of the dishwasher.View our Zeolith® dishwashers
A sleek Siemens dishwasher is open, revealing dishes and glasses inside, against a modern kitchen backdrop with a marble wall.
How Zeolith® Drying worksDuring drying, a fan directs steam into a chamber where it is absorbed by the zeolite crystals. This process generates heat which speeds up drying. At the start of the next wash cycle, the zeolite is heated, releasing the stored moisture so the crystals are ready to perform again.

Three advanced drying technologies

When it comes to drying your dishes, Siemens offers three levels of technology, each tailored to different needs.
Open Siemens dishwasher with a blue glowing icon indicating a drying or heating function above the door.
Good: Heat exchangerThese dishwashers use a heat pump to support the drying process by reusing heat generated within the appliance.
Open dishwasher with plates inside and a glowing icon indicating a heated drying feature emitting steam.
Better: openDoorThe door opens automatically after drying to let out steam and prevent spots.
Diagram showing moisture entering and heat escaping from a block inside a dishwasher's interior.
Zeolith® dryingZeolith® technology converts moisture into heat and uses it to support the drying process, without the need for additional heating during this stage.

Intelligent features for exceptional dish care

Advanced drying technologies, dedicated glassware protection and flexible loading solutions combine to support outstanding dish care.

Raise a glass to stress-free cleaning

Worried about delicate glassware? The Siemens glassZone provides gentle cleaning and proven protection for all glassware of all shapes and sizes.
Close up of a spotlessly clean wine glass inside a Siemens dishwasher.
Dedicated glass protectionThe adjustable top rack features glass clip holders and anti-vibration mats. These components secure fragile glassware during the wash cycle, helping to reduce movement caused by vibrations.View dishwashers with glassZone
Illustrated icon of a dishwasher filled with plates and bowls and the top rack angled slightly.
Gentle but thorough cleaning The glassZone includes six integrated nozzles that deliver a targeted water flow to clean effectively while helping to protect delicate glassware from high water pressure.

Fit more, the easy way

Big pots, tall glasses, awkward dishes – rackMatic makes space for all of it. Simply adjust the top rack to 9 unique positions using simple levers that lock securely. No more playing tetris with your dishes. Just effortless loading with flexible baskets.
Illustrated icon of a full dishwasher with a large pot at the bottom and an arrow pointing up.
High upper rackPlace the upper rack in a high position to make room for large pots and other bulky items below.
Illustrated icon of a full dishwasher with large plates at the top and an arrow pointing down.
Low upper rackGot lots of plates and bowls but no big items? Lower the upper rack to fit to ensure no space is wasted.
Illustrated icon of a dishwasher filled with plates and bowls and the top rack angled slightly.
Tilted upper rackPosition the upper rack at an angle to fit bulky items below while maximising the space up top.

How to adjust the upper rack

Create the perfect fit in seconds. Simply hold both side of the upper rack and press the levers on either side. Adjust the rack into one of 9 positions and release the levers to secure it.

Built-in Siemens dishwasher with open upper rack holding plates and wine glasses under blue light.
Two hands holding the top rack of a Siemens dishwasher, loaded with clean dishes.
A hand removing a clean wine glass from the top rack of a Siemens dishwasher.
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*Drying results of a Siemens dishwasher with Zeolith Drying compared to a Siemens Dishwshe without Zeolith Drying, based on standard household plastic dishes, determined in the ECO50 programme using Finish Ultimate Plus.