So what was the main reason for a new platform, next to the usual reasons? The ridiculously long washing time. European-style horizontal drum washers easily take two to three hours for a normal cycle. Europeans are used to this. But in many international markets, customers who switched from U.S. agitator to drum machines do appreciate the better washing results and the better efficiency, but they can’t get used to the endless waiting. So what better to use some German engineering, solve the problem and justify the premium prices Miele is known for?
They asked themselves what exactly is the problem? It is in the core of the washing process and is called the Sinner Circle or the Sinner’s Factors. Herbert Sinner was an employee from German chemical giant Henkel and he published an educational book, written for housewives, called “About Washing With Household Washing Machines,” in 1959. He defined four factors: chemical action, mechanical action, temperature and time. They together define the result of the process. So if you want to reduce the time factor, the others must compensate to keep up the washing result. The Miele engineers did their homework and defined three problems in the chemical process: the enzymes in the detergent are messed up by the bleach, the dissolving of detergent needs improvement and the initial absorption phase of water and detergent takes too long.
Bleach kills enzyme. We need both as bleach works on stains and enzymes remove fat. In a perfect world you would add the bleach after the enzymes have finished but you can’t ask consumers to add a second detergent twenty minutes after program start. Miele engineers love these kinds of problems and they came up with a two-phase washing cycle using two new liquid detergents, dispensed separately. The end effect is a significant reduction in the time factor. Second, the dissolving of detergent takes too long, already explored by Samsung in their EcoBubble system, where a second pump recirculates the water. Miele now also mounts a recirculation pump. As an added feature it sprays the water in the middle of the drum, while fixing the laundry to the drum in a kind of low-speed spinning. This way the water absorption in the beginning of the cycle is optimized. So due to these three features – separate enzymes and bleach, water recirculation, faster absorption, the washing process is drastically improved so that a 5 kilo load can be finished within one hour. For the full 8 kg capacity a longer program is still needed, but most loads are smaller anyway.
The TwinDos detergent dispensing is completed by CapDosing: capsules with fabric softener, special detergents wool, outdoor or stain removers.
The detergent systemis flexible: you can use the Miele detergents, but also combine existing detergents and softeners, or use powders.
Of course there is a steam generator available, for pre-ironing. But there is also an entry-level pre-ironing system, using existing components: just a bit of water is let in and heated so that the drum heats up and performs an ironing-like effect.
Regarding design, the overall appearance is simplified and there are two design styles offered: the traditional with a stainless steel porthole, as well as a white-and-chrome combination, clearly inspired by the clean Braun/Apple look. This look is also adopted in models from Siemens and Samsung. There are less buttons and a less cluttered look: the electric door opener is gone and some options are now in sub-menus. The overall visual appearance is less strict than before thanks to the flowing horizontal line above the porthole, required because the condensation water reservoir of the dryer needed to be bigger to accommodate the 8 kg capacity. The heat pump dryer is also new but the features are equal to the existing line.