The main component of dishwashing salt is sodium chloride, which is used to soften the water quality. Belonging to a soft water salt. If used normally, it is harmless to the body, but a small number of people may cause certain harm to the body. Common hazards mainly include destroying the skin barrier and causing allergies.

1, destroying skin barrier: detergent salt is almost composed of pure sodium chloride, and its aqueous solution is neutral. In normal use, it can be directly added to the softener of the dishwasher at regular intervals, which is harmless to the body. However, if it is not used properly, long-term exposure to high concentration sodium chloride may damage the stratum corneum of the skin, thus destroying the skin barrier;

2. Allergy: Although dishwashing salt is almost sodium chloride, it may also contain trace amounts of other chemicals in the production process. Improper use, such as direct contact with dishwashing salt solution by hand, may cause local skin allergy, erythema, itching, edema, etc., and severe cases may lead to systemic allergic symptoms, such as dizziness, nausea, rash, etc.

If you use a dishwasher, you should choose regular vegetable washing salt or soft water salt to ensure the purity of sodium chloride in the vegetable washing salt, achieve the effect of soft water, and also ensure your health and avoid residue. When adding vegetable salt, most of them can add solids according to the instructions. If you directly touch the dishwashing salt with your hands, you need to wash your hands with clear water.

Why don't experts recommend using a dishwasher?

Experts don't suggest not using a dishwasher, but using a dishwasher also has some disadvantages. Although it is convenient, it also has many disadvantages, such as long use time, about one hour to wash dishes at a time, and more water and electricity.

If a dishwasher is installed, you'd better eat more at home. If there are more bowls and chopsticks, washing is more cost-effective. If there are only two or three people in the family, there is no need to use the dishwasher, which is time-consuming and laborious. It is understandable that the dishwasher will make more or less noise when cleaning. After all, washing dishes manually is noisy. But the washing time of the dishwasher is longer than manual, about 30 minutes. The noise will naturally last longer.

Dishwasher selection skills

1, model

When buying a dishwasher, the first thing to consider is what kind of dishwasher can be put in the kitchen, which is mainly divided into three types: desktop dishwasher, sink dishwasher and embedded dishwasher.

Desktop dishwashers are suitable for renting parties; The sink dishwasher is suitable for families with no reserved dishwasher position in the cupboard, which is very convenient to transform; Embedded is suitable for families where the cupboard has reserved the position of dishwasher. From all aspects, embedded products have the highest cost performance.

2. Capacity

Dishwasher must have a large capacity, because it can be used not only to clean tableware, but also to clean small shelves in the kitchen, oil collection boxes of range hoods, refrigerator drawers and so on. As long as it is a small item, you can use it to wash it, and the effect is good. It is recommended to directly select more than 13 sets of products.

Is dishwashing salt harmful to human body?

Industrial salt contains a lot of nitrite. Common industrial salt poisoning incidents are mostly caused by eating sodium nitrite by mistake or eating too much. Sodium nitrite is mainly used in dyes, medicine, printing and dyeing, bleaching and so on. Because of its coloring, antibacterial and antiseptic effects, it is often used as a coloring additive for cooked meat products in food industry. China's Hygienic Standard for the Use of Food Additives stipulates that the maximum dosage of sodium nitrite in meat is 0. 1.5g/kg, and its residue in meat products shall not exceed 0.03g/kg；. It shall not exceed 0.05g/kg in canned meat products. Generally speaking, as long as the human body ingests 0.2 ~ 0.5 grams of nitrite, it will cause poisoning; Ingestion of 3 grams of nitrite will lead to death.

Is industrial alkali washing dishes harmful to human body?

Toxic.

Improper cleaning is irritating and corrosive. Sodium hydroxide itself is an alkaline cleaner, which can be used to clean articles, but it is not recommended to clean tableware.

Tableware, as a food container, has a close relationship with human body. When cleaning, the skin will inevitably come into contact with caustic soda, which is strongly irritating and corrosive. Its dust or smoke will irritate eyes and respiratory tract, corrode nasal septum, and direct contact between skin and eyes with NaOH will cause burns. Mistaken intake can lead to digestive tract burns, mucosal erosion, bleeding and shock.

As a cleaning agent, caustic soda is mainly used for:

1. Detergent: Sodium hydroxide is used to produce various detergents. Even today's washing powder is made of a large amount of caustic soda to neutralize the excess oleum after sulfonation.

2. Soap: Making soap is the oldest and most extensive use of caustic soda. Sodium hydroxide has been used in traditional daily life. Until today, the demand for caustic soda from soap, soap and other washing products still accounts for about 15% of caustic soda.

Refer to the above content: Baidu Encyclopedia-Sodium hydroxide

Is the salt in the dishwasher harmful to your health?

Special dishwashing detergent can clean dishes better, but many people are worried about the safety of these detergents. Next, PChouse will answer it.

There are three kinds of detergents for home automatic dishwashers, all of which are harmless to human body. One is dishwashing powder or washing block for washing dishes. One is bright tableware and brightener to improve drying effect, and the other is special salt to soften water quality.

Firstly, the main component of dishwashing powder is alkali, and secondly, amylase, protease and other decomposing enzymes are added, which is harmless to human body. Moreover, the dishwashing powder has low foam and little foam, so it is easy to wash, and there is no need to worry about residue.

Secondly, whitening agents are used to increase the surface activity of water. The main ingredient is food-grade sodium citrate, which will be put in drinks and some surfactants. This detergent is strictly tested, with little residue, which can be excreted by human metabolism, so there is no need to worry about being harmful to human body.

The third special salt is a salt with higher purity than table salt. High-purity salt contains less impurities and minerals, which has a certain protective effect on the water softener and has no harm to the human body at all. At the same time, salt only works when the resin is regenerated, and it will be discharged with water, so it will not remain on the tableware.