After buying a dishwasher, some housewives feel a little confused and even disappointed. This is due to the fact that you cannot wash a fairly large number of types of kitchen utensils in the dishwasher.
The problem is that some types of dishes and kitchen utensils should not be washed in an automatic machine, due to the fact that quite extreme conditions are created in the washing chamber in order to achieve absolute cleanliness. The dishes are exposed to very hot water for a long time with the addition of strong chemicals, and at the end of the cycle they are forced to dry with a stream of hot air. Not every material or coating can withstand such an intense impact without unpleasant consequences. To know which one is not recommended to be washed in an automatic mode, you need to carefully study the instructions for the dishwasher before use.
Metal utensils
Not all metal utensils are dishwasher safe, depending on the type of material they are made of. It is necessary to completely exclude those kitchen items that need to be washed at low temperatures using non-aggressive detergents:
- Aluminum - this metal is actively oxidized in the dishwasher. This is due to both exposure to very high temperatures and the use of alkali, which is part of detergents. If you take aluminum dishes from the dishwasher, then black spots will remain on your hands - this is aluminum oxide.
- From silver - after processing in the dishwasher, dark spots appear on their surface, the appliances themselves fade, become faded. It is generally recommended to wash silver separately, avoiding contact with other metal utensils, oil and acids.
- Cast iron - the negative effect will manifest itself over time, especially when it comes to large massive pans. After the third or fourth wash, traces of corrosion will begin to appear on the surface, and the food will burn during cooking, sticking to the surface of the pan
- Copper - prolonged contact with detergents and hot water is contraindicated for it. In a rather aggressive environment, copper begins to darken, losing its characteristic warm golden hue.
- Cupronickel - due to prolonged exposure to hot water, it loses its shine, darkens, the coating begins to peel off.
See also - Principles and features of loading dishes into the dishwasher
Wooden tableware
It is highly undesirable to wash kitchen utensils made of wood in the dishwasher. This is due to the peculiarities of the tree structure. With a long stay in water, the wood fibers begin to absorb moisture, the wood product begins to swell, increasing in size. In order for wooden dishes to be saturated with moisture, even in cold water it will take about 30-40 minutes (for reference, one cycle in a dishwasher can take up to 3 hours).
In warm water, this time is significantly reduced, moisture absorption is much more intense. When drying (processing dishes with hot air), there is a sharp and uneven decrease in the moisture content in the fibers, they begin to shrink. As a result, cracks appear on a wooden object, it deforms, loses its attractiveness and aesthetics. Therefore, in order to ensure the safety and long-term operation of kitchen utensils made of wood, it is better to rinse it with your hands in warm (not hot) water.
Important:
Also, do not wash dishes in the dishwasher that contain wooden elements, such as pans or chopping (chef's) knives with wooden handles.
Plastic utensils
It is allowed to load into the dishwasher only those dishes that are made of special heat-resistant plastic. Usually it has a special sign indicating the possibility of automatic washing. If there is no such sign, you should not risk it and use a dishwasher to wash plastic dishes. In addition, do not put all disposable dishes, as well as plastic items that have glued items. Another sign that speaks of the unsuitability of plastic dishes for washing in an automatic machine is a sharp characteristic "plastic" smell.
What else shouldn't be washed in the dishwasher
We also note which dishes cannot be washed in the dishwasher:
- gilded items are washed exclusively by hands, this will preserve their presentable appearance. For gilding, the aggressive environment in the dishwasher is absolutely unsuitable; detergents will literally wash off a thin layer of precious metal. This rule also applies to porcelain cups with a gilded pattern.
- crystal - very sensitive to sudden changes in temperature, which can lead to cracking. In addition, minor vibrations can cause almost invisible scratches. Over time, when there are enough of these scratches, this will cause the crystal surface to become cloudy, losing its special, unique shine.
- thin porcelain - does not tolerate sudden changes in temperature; when treated with hot steam, its surface may simply crack
- sharp knives - the knives themselves will have nothing, but they will lose their sharpening. Experience shows that even if you just hold the knife in hot water for 5-8 minutes, it will become noticeably dumber. After washing in the dishwasher, knives will have to be constantly sharpened
- Teflon-coated dishes - by themselves, it does not require much effort when washing, because when used correctly, food does not stick to the bottom of the pot or pan. Therefore, such dishes must be washed by hand with warm water, using a minimum amount of non-aggressive detergent. In a dishwasher, due to a fairly intense exposure, the Teflon coating wears out quickly, which leads to a significant reduction in the service life of such dishes
- vacuum cookware - plastic pots and containers, the lids of which allow you to evacuate air to ensure long-term storage of food. Due to the treatment with very hot water in an automatic car wash, the plastic may deform slightly. And although these changes are almost imperceptible to the human eye, the lid will no longer fit perfectly against the walls, so the tightness of the dishes will be lost.
Washing thermoses and thermo mugs in automatic mode is allowed only if the manufacturer has indicated such a possibility. Otherwise, they must be hand washed.
What kind of dishes can be washed in the dishwasher
Despite a fairly large number of restrictions, the dishwasher remains a very convenient and useful household appliance, coping well with a large number of dishes of different types:
- cookware with ceramic and enamel coating
- glassware - it is important to place it correctly so that it does not break due to strong vibration, objects must be placed tightly and at some distance from each other
- all dishes that are made of stainless steel
- earthenware and porcelain cups and plates without patterns
- silicone molds - they can withstand the highest temperatures, great for automatic washing.
Almost all XXX food processors are suitable for automatic washing. But in order not to make a mistake and not to spoil the dishes, you must first familiarize yourself with the recommendations of the manufacturers. Now all leading companies in the operating instructions indicate as a separate paragraph whether the dishes are suitable for washing in the dishwasher. The main advice - if the manufacturer does not recommend, you should not use an automatic washing machine to wash such dishes.
Important:
More and more models appear on the market with a function that allows you to wash dishes in a "gentle" mode. This significantly expands the list of kitchen items that can be washed in automatic mode. The list of such dishes must be indicated in the instructions.
