Thermador DWHD640EFM Reviews & Ratings by Customers and Consumer Reports

Designed for homeowners who want a quiet, built-in dishwasher that looks seamless in a premium kitchen, the Thermador DWHD640EFM 24-inch dishwasher is best suited to frequent entertainers and busy households that value consistent cleaning, thoughtful rack design, and low day-to-day fuss. As an appliance specialist, I view this model as a strong “set-it-and-forget-it” option for buyers who prioritize refinement and predictable performance over flashy extras. In real-world use, the standout benefit is how composed the machine feels during operation. Thermador dishwashers in this class are engineered to run at a low noise level, which matters in open-concept layouts where a louder unit can dominate the room. The wash system is tuned for thorough coverage and dependable soil removal across mixed loads—everyday plates, glassware, and cookware—so users don’t have to pre-rinse to get consistently clean results. For households that run multiple loads per week, that translates to better efficiency and less time spent managing the machine. Loading ergonomics are another practical strength. A well-executed rack system and stable glide action make it easier to place larger items without fighting the layout, and the interior is built to handle the wear patterns that show up over years of use: repeated heat cycles, detergent exposure, and heavy racks. The overall fit-and-finish aligns with what most buyers expect from Thermador—solid door action, clean panel integration, and a premium, durable feel. Limitations are worth noting. Like many high-end, quiet dishwashers, cycle times can be longer on the most thorough programs, which may not suit buyers who need rapid turnaround multiple times per day. Also, this category tends to reward correct loading and appropriate detergent choice; users expecting perfect results from heavily nested items or overloaded racks may need a short learning curve to get the best performance. Finally, as a built-in 24-inch platform, it’s not ideal for very small kitchens or households that rarely generate full loads. Verdict: the Thermador DWHD640EFM is an excellent match for design-conscious kitchens in the U.S. or Canada where quiet operation, polished integration, and reliable cleaning matter most. Buyers who prioritize the shortest possible cycles, ultra-simple loading tolerance, or a smaller footprint may want to consider alternatives better aligned with those needs.