list of dishes that should not be loaded into the dishwasher

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The dish­wash­er has become a true friend and a won­der­ful helper for house­wives.

It allows you to save time and effort on clean­ing up after eat­ing. But not all kitchen uten­sils can be washed in the car.

Tem­pered glass­ware, heat-resis­tant plas­tic, unprint­ed porce­lain and ceram­ic items, enam­eled dish­es — all this and more can be loaded into the dish­wash­er.

The iden­ti­fi­ca­tion mark will be the sym­bol on the dish­es, which shows the plates in the dish­wash­er con­tain­er.

For dif­fer­ent man­u­fac­tur­ers, this icon may be slight­ly dif­fer­ent, but its essence is the same.

But what kind of dish­es absolute­ly can­not be washed in a type­writer, we will ana­lyze in this arti­cle.

Knives and tools

Under the influ­ence of high tem­per­a­tures and aggres­sive deter­gents, the met­al from which the knife blades are made cor­rodes.

Despite the fact that the man­u­fac­tur­er often calls the steel from which the knife blades are made stain­less (stain­less steel), in some cas­es rust does appear.

In addi­tion, the resis­tance of the knife to rust is also deter­mined by the coat­ing of the blade. Under the influ­ence of a strong pres­sure of heat­ed water, the sub­stance designed to pro­tect the blade is erased from the sur­face over time, expos­ing the vul­ner­a­ble met­al. The edge of the knife is blunt­ed, it becomes nec­es­sary to sharp­en the knife.

In addi­tion, the knife han­dle can also be exposed to hot water and deter­gent. So wood­en han­dles become unus­able after sev­er­al wash­ing cycles.

Do not immerse kitchen graters, scis­sors, knives from a meat grinder, food proces­sor and blender into the dish­wash­er. Items on this list will def­i­nite­ly become dull dur­ing wash­ing.

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metal utensils

Plates, mugs, pots and oth­er met­al uten­sils require wash­ing at a low tem­per­a­ture and using gen­tle prod­ucts.

Wash­ing them in the dish­wash­er can not only spoil the integri­ty and appear­ance of the prod­uct, but also lead to the ingress of harm­ful chem­i­cal ele­ments into food.

aluminum cookware

Alu­minum is a very active met­al, eas­i­ly enter­ing into chem­i­cal reac­tions with oth­er sub­stances, includ­ing water.

On the sur­face of alu­minum there is an oxide film, which eas­i­ly dis­solves in an alka­line envi­ron­ment. Alka­lis found in dish­wash­er deter­gents dis­solve and remove this film from alu­minum cut­lery. A dark, indeli­ble coat­ing forms on their sur­face, which spoils the appear­ance of the dish­es.

At the same time, harm­ful chem­i­cal com­pounds can get into food, since there is no longer a pro­tec­tive lay­er on the dish­es.

Cast iron cookware

Fry­ing pans and stew­pans, caul­drons and goose pots, cast iron bak­ing sheets are con­sid­ered strong and durable uten­sils that can with­stand high tem­per­a­tures dur­ing cook­ing on the stove, in the oven, on the grill.

But in the dish­wash­er, under the influ­ence of water tem­per­a­ture changes, chem­i­cal deter­gents, cast iron can crack and cor­rode. The dish­es will lose not only their appear­ance, but also their func­tion­al­i­ty.

There­fore, it is bet­ter to wash cast iron prod­ucts by hand using non-aggres­sive prod­ucts.

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Silverware

Sil­ver forks and spoons, sets and trays have always been con­sid­ered a sign of wealth and good taste. To this day, sil­ver items are in the kitchen of a good house­wife. But in no case should you com­bine sil­ver and a dish­wash­er.

Chem­i­cal com­pounds con­tained in deter­gents for PMM have a neg­a­tive effect on the mir­ror shine of sil­ver prod­ucts. Sil­ver becomes cloudy, cov­ered with a gray coat­ing and becomes sim­i­lar to alu­minum.

copper utensils

When deter­gents con­tained in dish­wash­er tablets inter­act with cop­per prod­ucts, the lat­ter lose their attrac­tive appear­ance — they dark­en and become cloudy.

It will not be pos­si­ble to return the orig­i­nal state of the dish­es, so it is bet­ter to pre­vent dam­age.

cupronickel utensils

Beau­ti­ful and ele­gant dish­es made of cop­per-nick­el alloy (cupron­ick­el) will be seri­ous­ly dam­aged after wash­ing in the dish­wash­er: they will dark­en, become cloudy, and the pat­tern will be erased.

plastic utensils

Before you open the machine and load plas­tic dish­es into it, you need to study the sym­bols on the back.

Only heat-resis­tant food-grade plas­tic with a spe­cial icon can be washed in PMM. The crossed out sym­bol cat­e­gor­i­cal­ly pro­hibits wash­ing in the dish­wash­er, just like the sym­bol “PS” (poly­styrene prod­uct) or “PVC” (PVC). When heat­ed, these sub­stances turn into harm­ful com­pounds and are tox­ic to humans.

Only items made of food-grade polypropy­lene with the “PP” mark, as well as items made of poly­eth­yl­ene tereph­tha­late “PET” can be washed in the dish­wash­er.

Dis­pos­able plas­tic cups, cut­lery, food con­tain­ers should nev­er be washed in the dish­wash­er. Such dish­es should be thrown away after a sin­gle use.

Very delicate products

Frag­ile and frag­ile dish­es made of crys­tal and porce­lain, ceram­ics and glass can crack and break under the pres­sure of water dur­ing wash­ing in the car.

Some PMMs have a del­i­cate mode designed specif­i­cal­ly for such prod­ucts.

How not to spoil expen­sive dish­es, we will ana­lyze fur­ther.

Crystal objects

It is advis­able to wash crys­tal in the dish­wash­er sep­a­rate­ly from oth­er dish­es, using a spe­cial mode for wash­ing crys­tal, using gen­tle deter­gents and rinse aid for shine.

But nev­er­the­less, this does not guar­an­tee that crys­tal glass­es or vas­es will remain safe and sound and will not lose their orig­i­nal appear­ance. There­fore, it is bet­ter to expose them to hand wash­ing.

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Porcelain

If there is no spe­cial image on porce­lain dish­es that allows wash­ing in a machine, then it is bet­ter to aban­don this idea.

Not only can frag­ile porce­lain crack under the influ­ence of high tem­per­a­tures of water and steam, but also the pat­tern and dec­o­ra­tive ele­ments that adorn porce­lain prod­ucts can be irrev­o­ca­bly washed.

Pat­terns and gild­ing on the bor­der of cups and saucers are not sta­ble under the influ­ence of deter­gents (such as “Fairy”), so the dish­es will lose their decent appear­ance after the first cycle in the PMM.

Ceramic tableware

In most cas­es, the man­u­fac­tur­er allows clean­ing ceram­ics in the dish­wash­er, but do not for­get about the applied images. If the crock­ery is dec­o­rat­ed, it is auto­mat­i­cal­ly con­sid­ered hand-wash­able only.

Clay dishes

Pots and molds made of clay, but glazed, should not be placed in the dish­wash­er.

The porous struc­ture of the mate­r­i­al dur­ing pro­longed expo­sure to hot water, steam and chem­i­cals will lose its strength and soon crack.

Cookware with non-stick coating

The non-stick coat­ing is very easy to use: food does not burn, which makes it eas­i­er to cook and clean.

But such a coat­ing is not always strong and durable and requires spe­cial care.

Teflon coated pan

The Teflon coat­ing is frag­ile and very sen­si­tive to the effects of chem­i­cal com­pounds in deter­gents. It dete­ri­o­rates and cracks after two or three wash­ings in the PMM. Teflon lags behind and begins to peel off, and when cook­ing, it can ruin the dish.

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Crockery with granite and marble chips

Such fry­ing pans, caul­drons and stew­pans are very durable, lit­tle sus­cep­ti­ble to mechan­i­cal dam­age and retain heat well.

But this mate­r­i­al is afraid of aggres­sive deter­gents, so not every dish with a gran­ite com­po­si­tion can be washed in a dish­wash­er. You can ver­i­fy this pos­si­bil­i­ty by care­ful­ly exam­in­ing the label from the dish­es.

ceramic coating

Just like all-ceram­ic cook­ware, the ceram­ic non-stick pan is very good for cook­ing on any hobs. But it can dete­ri­o­rate when washed in PMM, so it is bet­ter to save such prod­ucts and wash them by hand.

Wooden utensils and cutting boards

Wood­en plates, spoons, cut­ting boards, and any uten­sils with wood­en han­dles are absolute­ly not suit­able for the dish­wash­er.

Dur­ing the oper­a­tion of the PMM, under the influ­ence of heat­ed water and hot steam, the tree swells, and after dry­ing it los­es its shape and cracks. Wood­en prod­ucts become unus­able after sev­er­al wash­ings.

Do not for­get that the tree absorbs chem­i­cals well, so it can acquire an unpleas­ant odor and become dan­ger­ous to use.

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Kitchenware

In the kitchen there is always a huge num­ber of dif­fer­ent items with which cook­ing becomes fast and intri­cate.

But not all kitchen uten­sils can be washed in PMM.

Grater

As described above, the blades on the grater can become dull dur­ing wash­ing in the dish­wash­er. But do not for­get that food residues that clog the holes in the grater are washed out dur­ing the wash cycle and clog the drain fil­ters of the machine.

It is much eas­i­er to fill the grater with deter­gent and wash it by hand imme­di­ate­ly after use, with­out cre­at­ing unnec­es­sary prob­lems for your­self.

Strainer and colander

The strain­er in the dish­wash­er can become deformed, and pieces of food or tea leaves can clog the fil­ters.

A plas­tic colan­der can be washed in a dish­wash­er only if the man­u­fac­tur­er allows it. Alu­minum colan­ders can only be washed by hand.

The same applies to the gar­lic press. PMM will not wash out gar­lic residue in small holes. In the mean­time, the host­ess will clean the gar­lic press, the lat­ter will at the same time and thor­ough­ly wash under run­ning water.

glass jars

From year to year, blanks can be ster­il­ized and closed in the same jars, but it is advis­able to change the lids.

Glass jars can be washed in the dish­wash­er if they do not have labels and there is no food left in them.

But the lids can­not be loaded into the PMM, the sil­i­cone lay­ers on the inner sur­face of the tin lids will dete­ri­o­rate dur­ing wash­ing.

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Thermoses, lunch boxes and thermo mugs

The design and out­er mate­r­i­al may be quite suit­able for wash­ing in the PMM. The inter­nal struc­ture, which retains heat, deforms under the divid­ing effect of high tem­per­a­tures and ceas­es to ful­fill its func­tion.

It is bet­ter not to wash such dish­es in the dish­wash­er so that they keep the heat of the cooked food as long as pos­si­ble.

Silicone forms

Sil­i­cone mats and molds can be washed in the dish­wash­er, but do not for­get that they can absorb harsh chem­i­cals, so if they are slight­ly dirty, they can be quick­ly washed under the tap.

Although the man­u­fac­tur­er rec­om­mends wash­ing sil­i­cone molds in the dish­wash­er, before load­ing the sil­i­cone prod­uct into the machine, you should care­ful­ly read the instruc­tions on the label or look for the famil­iar sym­bol on the back.

Thus, the dish­wash­er is an indis­pens­able assis­tant in the kitchen, but you need to use it wise­ly so as not to spoil not only the dish­es, but also the dish­wash­er itself.

Useful video

About the dish­es that can­not be washed in the dish­wash­er, they will tell in the video:

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