Comparison Bosch SMS 4HTI33E stainless steel vs Bosch SMS 25AI05E stainless steel

The dishwasher has a drying function. Drying can occur both due to the natural evaporation of water from the surface of the dishes ( condensation drying), and due to turbo dry with heated air. The first option is more economical since it does not require energy. Besides, there is also an improved one — with a heat exchanger. It provides significantly faster drying. And the recently appeared new type of drying Zeolith combines both methods because it firstly collects residual moisture and then generates it into heat, which dries the dishes and belongs to the premium segment models. Note that not all machines can dry dishes to complete dryness; see Drying class for details.

The number of washing programmes (modes) provided in the machine. These programmes may differ in duration, exposure intensity, water temperature, dish material (e.g. for delicate dishes), etc. For more information on the different options, see "Programmes". Note that with the same number of programmes, their specific set in different models may be various. These details should be clarified separately.

— Custom programme. Ability to create and save a custom programme by setting the parameters to your liking. This function is convenient because instead of setting the washing settings manually each time, it is enough to save them once in the device’s memory and then select a user programme from the list.

— Half load. A special programme for those cases when the dishwasher is loaded with only half its regular capacity. Running a full-fledged wash in such cases would be too wasteful. In the half load mode, the dishwasher reduces the consumption of water, detergents and electricity and focuses on a reduced amount of dishes. Such a programme is relevant mainly for big models (from 8 place settings).

— Pre-rinse. it is a programme where the dishes are rinsed with cold water and, due to the high humidity in the working chamber, do not dry out for a long time, and food remains do not dry out on the plates. This programme is useful in cases where unwashed dishes need to be kept inside for a long time. For example, if you need to leave the house for a couple of days, and there is no time to wash the dishes, or if there are enough dishes for the main programme to work in several meals. In addition, it can be useful for washing heavily soiled dishes — rinsing allows you to soften and then remove dried-on dirt without using intense washing...programmes (which are not available on all models).

— Quick wash. The programme is designed mainly for lightly soiled dishes that do not require intense washing.

— Automatic. The peculiarity of this programme is that the machine independently monitors the process of work: special sensors evaluate the composition of the water flowing from the dishes during rinsing, and when no impurities are found in it, the work ends. The washing does not last a strictly defined time but until the dishes are clean completely. It ensures optimal resource consumption. In this case, the washing mode itself can be different: in some models, the automatic programme works only in the standard mode, in others, you can select the water temperature.

— Eco. A programme that reduces the consumption of water, detergents and electricity compared to a normal wash cycle. Usually, it is intended for dishes without heavy soiling and dried food residues, although individual models may have their features of the economy mode.

— Delicate (for glass). Special programme for washing fragile dishes, especially those made of thin glass. Washing is carried out at low temperatures and with minimal mechanical stress, which allows you to keep delicate dishes intact.

— Hygienic. A programme designed for the most effective destruction of pathogenic bacteria and viruses. Usually, it provides elevated water temperatures (about 68 ... 70 °C), which can provide a bactericidal effect. The presence of this mode is very desirable if the machine is used to wash children's dishes; it can also come in handy if someone in the family gets sick.

— Intensive. Special programme for washing heavily soiled dishes, such as pans with dried-on food residues. Usually, it provides increased pressure and elevated water temperature.

— Quiet). A programme for working at night and in other situations where excessive noise is undesirable. The level of noise produced by the dishwasher in this mode is reduced due to a decrease in water temperature, a decrease in its pressure and several other tricks (their specific set depends on the model). And the necessary washing efficiency is usually provided due to the increased operating time; when you turn on the machine at night, the duration of washing is not a serious drawback.

— Steam. Hot steam treatment of dishes can be used for two purposes. The first option is a preliminary procedure similar to pre-rinse and designed to soften dried food residues; at the same time, due to the high temperature, the steam handles the task faster and more efficiently. In addition, some machines provide the possibility of sterilizing jars and other utensils for home canning in this way. However, the energy consumption during steam processing is quite high. In addition to the above, other types of programmes may be indicated in the characteristics of dishwashers, in particular:

— Normal. Standard programme for washing lightly soiled dishes with a full load at temperatures around 65 °C. Available in almost all modern dishwashers, but sometimes manufacturers specify its availability separately.

— Plastic utensils. Programme for washing reusable plastic dishes. Usually, it provides lower temperatures and lower intensity than the standard programme — plastic is sensitive to scratches and does not tolerate high heat. We note that not all plastic dishes, even reusable ones, are compatible with a dishwasher — this point should be clarified separately, and washing disposable dishes in principle does not make sense.

— Mixed. This category includes all programmes that combine several washing modes at once. For example, the normal mode in the compartment for cups and glasses, plus the intensive one in the lower part, where you can put a pot or frying pan. Options for such combinations may be different, depending on the model.

— Self-clean. A special programme removes all kinds of impurities from the walls of the washing chamber. In the self-clean mode, the machine heats the water as much as possible using detergents and drains it often, which allows you to get rid of moderate soiling.

The ability to adjust the height at which the top basket of the dishwasher is located. This adjustment allows you to adjust the device to the height of the dishes: for example, by moving the basket down, you can load large items into it, such as pots or pans.

The door auto-closer is responsible for “pulling” the door when closing, and in some models also when opening. The idea is that the user does not need to close/open the door completely: pull it to the right place, and then the door will be "picked up" by the auto-closer and smoothly brought to a fully open or closed state. Such a system performs two functions. Firstly, it reduces the risk of leaving the dishwasher not closed. Secondly, such a device provides a very smooth opening and closing without shock. Thus it has a positive impact on the life span of the entire device.

— Rotary knob. Usually, it is not the only control: the rotary knob is used to select the operating mode, and the remaining functions of the dishwasher (start-stop programmes, timers, etc.) are controlled by buttons. However, panels with rotary knobs still have their specifics, so they are distinguished as a separate type of control. Technically, this option can be used in dishwashers of all price categories, but it is found mainly in relatively inexpensive models.

— Push-button controls. This option allows you to work even with very extensive functionality, while buttons are cheaper than touch controls(see below). Therefore, push-button controls can be found in all classes of dishwashers, from low-cost to top-end ones. Its main disadvantage is the presence of slots between the buttons and the panel, where dirt can clog; cleaning out this dirt can be quite difficult.

— Touch controls. These controls are easier to operate than buttons (see above) — instead of pressing, a light touch is enough. Touch controls are easy to clean. Do not forget that such control gives the dishwasher a modern and advanced appearance. On the other hand, touch controls are more expensive than other types of control. Therefore, they are used mainly in high-end models.

Ability to control the dishwasher via the Internet. Thanks to this feature, the user can control the device from almost anywhere in the world. In addition, most of these smart dishwashers are capable of sending various notifications — for example, about the end of the programme, the remaining detergent, water supply failures, and other malfunctions. Connecting the dishwasher to the Internet can be done in different ways, but the most common is via a Wi-Fi module.

Note that the specific features of control via Internet may vary. For example, in some models it is carried out via a smartphone, tablet or other gadgets with a special application. In others, you can use any Internet browser. The set of dishwasher functions available to the user can also be different. However, this feature provides additional convenience and can be very useful — especially for those who spend most of their time away from home.

It is a safety system designed for homes where there are small children. Various locks can be provided in the design, To prevent a curious child from injuring himself and ruining the machine — usually for the door, sometimes also for the control panel. Child lock is disabled in a way that is easily accessible to an adult, but inaccessible to a child.

This parameter shows the efficiency of electricity consumption by a dishwasher. Classes are designated in Latin letters from A to G, in ascending order of energy consumption. It was originally conceived until more energy-efficient models pulled up to class A, which eventually received the marking A +, A ++, and A +++. Further development of technology has made it possible to go even further and, in order not to produce pluses in energy efficiency labelling, in March 2021, manufacturers returned to the previous indices from G to A, where A is the most energy-efficient dishwasher. Accordingly, the 2021 models will have modern markings, while older models will be marked the old way.